Home / 15,732.32-21,703.46-9,355.28

Finding the Fourth Proportional to 15,732.32, 21,703.46 and 9,355.28

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Solution

The fourth proportional to 15,732.32, 21,703.46 and 9,355.28 is: 12,906.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.32 : 21,703.46 = 9,355.28 : x
  2. Step 2: Convert to fraction form
    15,732.32/21,703.46 = 9,355.28/x
  3. Step 3: Cross multiply
    15,732.32x = 21,703.46 × 9,355.28
  4. Step 4: Simplify right side
    15,732.32x = 203,041,789.98
  5. Step 5: Solve for x
    x = 203,041,789.98/15,732.32
  6. Step 6: Final answer
    x = 12,906.03

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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.