Home / 10,215.97-14,089.57-8,626.30

Finding the Fourth Proportional to 10,215.97, 14,089.57 and 8,626.30

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Solution

The fourth proportional to 10,215.97, 14,089.57 and 8,626.30 is: 11,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.97 : 14,089.57 = 8,626.30 : x
  2. Step 2: Convert to fraction form
    10,215.97/14,089.57 = 8,626.30/x
  3. Step 3: Cross multiply
    10,215.97x = 14,089.57 × 8,626.30
  4. Step 4: Simplify right side
    10,215.97x = 121,540,800.90
  5. Step 5: Solve for x
    x = 121,540,800.90/10,215.97
  6. Step 6: Final answer
    x = 11,897.14

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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.