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Finding the Fourth Proportional to 18,285.71, 27,428.53 and 6,598.91

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Solution

The fourth proportional to 18,285.71, 27,428.53 and 6,598.91 is: 9,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.71 : 27,428.53 = 6,598.91 : x
  2. Step 2: Convert to fraction form
    18,285.71/27,428.53 = 6,598.91/x
  3. Step 3: Cross multiply
    18,285.71x = 27,428.53 × 6,598.91
  4. Step 4: Simplify right side
    18,285.71x = 180,998,400.90
  5. Step 5: Solve for x
    x = 180,998,400.90/18,285.71
  6. Step 6: Final answer
    x = 9,898.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.