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Finding the Fourth Proportional to 12,526.71, 17,274.93 and 7,490.11

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Solution

The fourth proportional to 12,526.71, 17,274.93 and 7,490.11 is: 10,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.71 : 17,274.93 = 7,490.11 : x
  2. Step 2: Convert to fraction form
    12,526.71/17,274.93 = 7,490.11/x
  3. Step 3: Cross multiply
    12,526.71x = 17,274.93 × 7,490.11
  4. Step 4: Simplify right side
    12,526.71x = 129,391,156.71
  5. Step 5: Solve for x
    x = 129,391,156.71/12,526.71
  6. Step 6: Final answer
    x = 10,329.22

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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.