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Finding the Fourth Proportional to 12,552.71, 18,829.10 and 5,151.98

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Solution

The fourth proportional to 12,552.71, 18,829.10 and 5,151.98 is: 7,727.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.71 : 18,829.10 = 5,151.98 : x
  2. Step 2: Convert to fraction form
    12,552.71/18,829.10 = 5,151.98/x
  3. Step 3: Cross multiply
    12,552.71x = 18,829.10 × 5,151.98
  4. Step 4: Simplify right side
    12,552.71x = 97,007,206.57
  5. Step 5: Solve for x
    x = 97,007,206.57/12,552.71
  6. Step 6: Final answer
    x = 7,727.99

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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.