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Finding the Fourth Proportional to 18,762.01, 28,144.29 and 6,281.53

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Solution

The fourth proportional to 18,762.01, 28,144.29 and 6,281.53 is: 9,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762.01 : 28,144.29 = 6,281.53 : x
  2. Step 2: Convert to fraction form
    18,762.01/28,144.29 = 6,281.53/x
  3. Step 3: Cross multiply
    18,762.01x = 28,144.29 × 6,281.53
  4. Step 4: Simplify right side
    18,762.01x = 176,789,061.24
  5. Step 5: Solve for x
    x = 176,789,061.24/18,762.01
  6. Step 6: Final answer
    x = 9,422.72

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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.