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Finding the Fourth Proportional to 15,600.71, 21,529 and 8,527.14

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Solution

The fourth proportional to 15,600.71, 21,529 and 8,527.14 is: 11,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.71 : 21,529 = 8,527.14 : x
  2. Step 2: Convert to fraction form
    15,600.71/21,529 = 8,527.14/x
  3. Step 3: Cross multiply
    15,600.71x = 21,529 × 8,527.14
  4. Step 4: Simplify right side
    15,600.71x = 183,580,797.06
  5. Step 5: Solve for x
    x = 183,580,797.06/15,600.71
  6. Step 6: Final answer
    x = 11,767.46

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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.