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Finding the Fourth Proportional to 15,907.47, 21,953.03 and 8,833.92

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Solution

The fourth proportional to 15,907.47, 21,953.03 and 8,833.92 is: 12,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.47 : 21,953.03 = 8,833.92 : x
  2. Step 2: Convert to fraction form
    15,907.47/21,953.03 = 8,833.92/x
  3. Step 3: Cross multiply
    15,907.47x = 21,953.03 × 8,833.92
  4. Step 4: Simplify right side
    15,907.47x = 193,931,310.78
  5. Step 5: Solve for x
    x = 193,931,310.78/15,907.47
  6. Step 6: Final answer
    x = 12,191.21

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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.