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Finding the Fourth Proportional to 9,202.78, 12,700.98 and 5,225.17

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Solution

The fourth proportional to 9,202.78, 12,700.98 and 5,225.17 is: 7,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,202.78 : 12,700.98 = 5,225.17 : x
  2. Step 2: Convert to fraction form
    9,202.78/12,700.98 = 5,225.17/x
  3. Step 3: Cross multiply
    9,202.78x = 12,700.98 × 5,225.17
  4. Step 4: Simplify right side
    9,202.78x = 66,364,779.67
  5. Step 5: Solve for x
    x = 66,364,779.67/9,202.78
  6. Step 6: Final answer
    x = 7,211.38

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Half scale
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Double scale
Find fourth proportional to 9,203.78, 12,702.36 and 5,226.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.