Home / 9,102.79-12,562.19-5,125.15

Finding the Fourth Proportional to 9,102.79, 12,562.19 and 5,125.15

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Solution

The fourth proportional to 9,102.79, 12,562.19 and 5,125.15 is: 7,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,102.79 : 12,562.19 = 5,125.15 : x
  2. Step 2: Convert to fraction form
    9,102.79/12,562.19 = 5,125.15/x
  3. Step 3: Cross multiply
    9,102.79x = 12,562.19 × 5,125.15
  4. Step 4: Simplify right side
    9,102.79x = 64,383,108.08
  5. Step 5: Solve for x
    x = 64,383,108.08/9,102.79
  6. Step 6: Final answer
    x = 7,072.90

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Half scale
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Double scale
Find fourth proportional to 9,103.79, 12,563.57 and 5,126.15
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.