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Finding the Fourth Proportional to 15,432.58, 21,296.98 and 8,359.00

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Solution

The fourth proportional to 15,432.58, 21,296.98 and 8,359.00 is: 11,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.58 : 21,296.98 = 8,359.00 : x
  2. Step 2: Convert to fraction form
    15,432.58/21,296.98 = 8,359.00/x
  3. Step 3: Cross multiply
    15,432.58x = 21,296.98 × 8,359.00
  4. Step 4: Simplify right side
    15,432.58x = 178,021,366.01
  5. Step 5: Solve for x
    x = 178,021,366.01/15,432.58
  6. Step 6: Final answer
    x = 11,535.43

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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.