Home / 15,669.52-21,619.92-9,377.44

Finding the Fourth Proportional to 15,669.52, 21,619.92 and 9,377.44

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Solution

The fourth proportional to 15,669.52, 21,619.92 and 9,377.44 is: 12,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.52 : 21,619.92 = 9,377.44 : x
  2. Step 2: Convert to fraction form
    15,669.52/21,619.92 = 9,377.44/x
  3. Step 3: Cross multiply
    15,669.52x = 21,619.92 × 9,377.44
  4. Step 4: Simplify right side
    15,669.52x = 202,739,502.60
  5. Step 5: Solve for x
    x = 202,739,502.60/15,669.52
  6. Step 6: Final answer
    x = 12,938.46

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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.