Home / 10,215.66-14,065.02-8,717.57

Finding the Fourth Proportional to 10,215.66, 14,065.02 and 8,717.57

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Solution

The fourth proportional to 10,215.66, 14,065.02 and 8,717.57 is: 12,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.66 : 14,065.02 = 8,717.57 : x
  2. Step 2: Convert to fraction form
    10,215.66/14,065.02 = 8,717.57/x
  3. Step 3: Cross multiply
    10,215.66x = 14,065.02 × 8,717.57
  4. Step 4: Simplify right side
    10,215.66x = 122,612,726.08
  5. Step 5: Solve for x
    x = 122,612,726.08/10,215.66
  6. Step 6: Final answer
    x = 12,002.43

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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.