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Finding the Fourth Proportional to 15,594, 21,520.08 and 9,629.76

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Solution

The fourth proportional to 15,594, 21,520.08 and 9,629.76 is: 13,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594 : 21,520.08 = 9,629.76 : x
  2. Step 2: Convert to fraction form
    15,594/21,520.08 = 9,629.76/x
  3. Step 3: Cross multiply
    15,594x = 21,520.08 × 9,629.76
  4. Step 4: Simplify right side
    15,594x = 207,233,205.58
  5. Step 5: Solve for x
    x = 207,233,205.58/15,594
  6. Step 6: Final answer
    x = 13,289.29

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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.