Home / 15,948.70-22,008.65-8,778.58

Finding the Fourth Proportional to 15,948.70, 22,008.65 and 8,778.58

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Solution

The fourth proportional to 15,948.70, 22,008.65 and 8,778.58 is: 12,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.70 : 22,008.65 = 8,778.58 : x
  2. Step 2: Convert to fraction form
    15,948.70/22,008.65 = 8,778.58/x
  3. Step 3: Cross multiply
    15,948.70x = 22,008.65 × 8,778.58
  4. Step 4: Simplify right side
    15,948.70x = 193,204,595.80
  5. Step 5: Solve for x
    x = 193,204,595.80/15,948.70
  6. Step 6: Final answer
    x = 12,114.13

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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.