Home / 10,215.75-14,088.38-6,626.97

Finding the Fourth Proportional to 10,215.75, 14,088.38 and 6,626.97

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Solution

The fourth proportional to 10,215.75, 14,088.38 and 6,626.97 is: 9,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.75 : 14,088.38 = 6,626.97 : x
  2. Step 2: Convert to fraction form
    10,215.75/14,088.38 = 6,626.97/x
  3. Step 3: Cross multiply
    10,215.75x = 14,088.38 × 6,626.97
  4. Step 4: Simplify right side
    10,215.75x = 93,363,238.47
  5. Step 5: Solve for x
    x = 93,363,238.47/10,215.75
  6. Step 6: Final answer
    x = 9,139.15

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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.