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Finding the Fourth Proportional to 15,602.17, 21,532.47 and 8,529.65

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Solution

The fourth proportional to 15,602.17, 21,532.47 and 8,529.65 is: 11,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.17 : 21,532.47 = 8,529.65 : x
  2. Step 2: Convert to fraction form
    15,602.17/21,532.47 = 8,529.65/x
  3. Step 3: Cross multiply
    15,602.17x = 21,532.47 × 8,529.65
  4. Step 4: Simplify right side
    15,602.17x = 183,664,432.74
  5. Step 5: Solve for x
    x = 183,664,432.74/15,602.17
  6. Step 6: Final answer
    x = 11,771.72

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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.