Home / 9,172.17-12,657.47-5,586.30

Finding the Fourth Proportional to 9,172.17, 12,657.47 and 5,586.30

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Solution

The fourth proportional to 9,172.17, 12,657.47 and 5,586.30 is: 7,709.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.17 : 12,657.47 = 5,586.30 : x
  2. Step 2: Convert to fraction form
    9,172.17/12,657.47 = 5,586.30/x
  3. Step 3: Cross multiply
    9,172.17x = 12,657.47 × 5,586.30
  4. Step 4: Simplify right side
    9,172.17x = 70,708,396.73
  5. Step 5: Solve for x
    x = 70,708,396.73/9,172.17
  6. Step 6: Final answer
    x = 7,709.02

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Half scale
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Double scale
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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.