Home / 10,988.06-15,162.31-6,207.49

Finding the Fourth Proportional to 10,988.06, 15,162.31 and 6,207.49

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Solution

The fourth proportional to 10,988.06, 15,162.31 and 6,207.49 is: 8,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.06 : 15,162.31 = 6,207.49 : x
  2. Step 2: Convert to fraction form
    10,988.06/15,162.31 = 6,207.49/x
  3. Step 3: Cross multiply
    10,988.06x = 15,162.31 × 6,207.49
  4. Step 4: Simplify right side
    10,988.06x = 94,119,887.70
  5. Step 5: Solve for x
    x = 94,119,887.70/10,988.06
  6. Step 6: Final answer
    x = 8,565.65

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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.