Home / 10,931.30-15,084.66-6,215.48

Finding the Fourth Proportional to 10,931.30, 15,084.66 and 6,215.48

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Solution

The fourth proportional to 10,931.30, 15,084.66 and 6,215.48 is: 8,577.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.30 : 15,084.66 = 6,215.48 : x
  2. Step 2: Convert to fraction form
    10,931.30/15,084.66 = 6,215.48/x
  3. Step 3: Cross multiply
    10,931.30x = 15,084.66 × 6,215.48
  4. Step 4: Simplify right side
    10,931.30x = 93,758,402.54
  5. Step 5: Solve for x
    x = 93,758,402.54/10,931.30
  6. Step 6: Final answer
    x = 8,577.06

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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.