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Finding the Fourth Proportional to 12,437.43, 17,163.51 and 7,401.57

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Solution

The fourth proportional to 12,437.43, 17,163.51 and 7,401.57 is: 10,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.43 : 17,163.51 = 7,401.57 : x
  2. Step 2: Convert to fraction form
    12,437.43/17,163.51 = 7,401.57/x
  3. Step 3: Cross multiply
    12,437.43x = 17,163.51 × 7,401.57
  4. Step 4: Simplify right side
    12,437.43x = 127,036,920.71
  5. Step 5: Solve for x
    x = 127,036,920.71/12,437.43
  6. Step 6: Final answer
    x = 10,214.08

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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.