Home / 12,515.52-17,274.24-7,211.28

Finding the Fourth Proportional to 12,515.52, 17,274.24 and 7,211.28

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Solution

The fourth proportional to 12,515.52, 17,274.24 and 7,211.28 is: 9,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.52 : 17,274.24 = 7,211.28 : x
  2. Step 2: Convert to fraction form
    12,515.52/17,274.24 = 7,211.28/x
  3. Step 3: Cross multiply
    12,515.52x = 17,274.24 × 7,211.28
  4. Step 4: Simplify right side
    12,515.52x = 124,569,381.43
  5. Step 5: Solve for x
    x = 124,569,381.43/12,515.52
  6. Step 6: Final answer
    x = 9,953.19

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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.