Home / 15,438.30-21,304.71-9,063.78

Finding the Fourth Proportional to 15,438.30, 21,304.71 and 9,063.78

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Solution

The fourth proportional to 15,438.30, 21,304.71 and 9,063.78 is: 12,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.30 : 21,304.71 = 9,063.78 : x
  2. Step 2: Convert to fraction form
    15,438.30/21,304.71 = 9,063.78/x
  3. Step 3: Cross multiply
    15,438.30x = 21,304.71 × 9,063.78
  4. Step 4: Simplify right side
    15,438.30x = 193,101,204.40
  5. Step 5: Solve for x
    x = 193,101,204.40/15,438.30
  6. Step 6: Final answer
    x = 12,507.93

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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.