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Finding the Fourth Proportional to 12,472.90, 18,693.10 and 5,068.71

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Solution

The fourth proportional to 12,472.90, 18,693.10 and 5,068.71 is: 7,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.90 : 18,693.10 = 5,068.71 : x
  2. Step 2: Convert to fraction form
    12,472.90/18,693.10 = 5,068.71/x
  3. Step 3: Cross multiply
    12,472.90x = 18,693.10 × 5,068.71
  4. Step 4: Simplify right side
    12,472.90x = 94,749,809.44
  5. Step 5: Solve for x
    x = 94,749,809.44/12,472.90
  6. Step 6: Final answer
    x = 7,596.45

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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.