Home / 15,949.81-22,016.91-10,642.69

Finding the Fourth Proportional to 15,949.81, 22,016.91 and 10,642.69

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Solution

The fourth proportional to 15,949.81, 22,016.91 and 10,642.69 is: 14,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,949.81 : 22,016.91 = 10,642.69 : x
  2. Step 2: Convert to fraction form
    15,949.81/22,016.91 = 10,642.69/x
  3. Step 3: Cross multiply
    15,949.81x = 22,016.91 × 10,642.69
  4. Step 4: Simplify right side
    15,949.81x = 234,319,215.32
  5. Step 5: Solve for x
    x = 234,319,215.32/15,949.81
  6. Step 6: Final answer
    x = 14,691.03

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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.