Home / 15,619.68-21,565.56-9,248.34

Finding the Fourth Proportional to 15,619.68, 21,565.56 and 9,248.34

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Solution

The fourth proportional to 15,619.68, 21,565.56 and 9,248.34 is: 12,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.68 : 21,565.56 = 9,248.34 : x
  2. Step 2: Convert to fraction form
    15,619.68/21,565.56 = 9,248.34/x
  3. Step 3: Cross multiply
    15,619.68x = 21,565.56 × 9,248.34
  4. Step 4: Simplify right side
    15,619.68x = 199,445,631.17
  5. Step 5: Solve for x
    x = 199,445,631.17/15,619.68
  6. Step 6: Final answer
    x = 12,768.87

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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.