Home / 10,987.43-15,162.30-6,207.57

Finding the Fourth Proportional to 10,987.43, 15,162.30 and 6,207.57

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Solution

The fourth proportional to 10,987.43, 15,162.30 and 6,207.57 is: 8,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.43 : 15,162.30 = 6,207.57 : x
  2. Step 2: Convert to fraction form
    10,987.43/15,162.30 = 6,207.57/x
  3. Step 3: Cross multiply
    10,987.43x = 15,162.30 × 6,207.57
  4. Step 4: Simplify right side
    10,987.43x = 94,121,038.61
  5. Step 5: Solve for x
    x = 94,121,038.61/10,987.43
  6. Step 6: Final answer
    x = 8,566.25

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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.