Home / 15,552.81-21,463.11-8,479.35

Finding the Fourth Proportional to 15,552.81, 21,463.11 and 8,479.35

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Solution

The fourth proportional to 15,552.81, 21,463.11 and 8,479.35 is: 11,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.81 : 21,463.11 = 8,479.35 : x
  2. Step 2: Convert to fraction form
    15,552.81/21,463.11 = 8,479.35/x
  3. Step 3: Cross multiply
    15,552.81x = 21,463.11 × 8,479.35
  4. Step 4: Simplify right side
    15,552.81x = 181,993,221.78
  5. Step 5: Solve for x
    x = 181,993,221.78/15,552.81
  6. Step 6: Final answer
    x = 11,701.63

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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.