Home / 10,170.59-15,261.65-5,490.54

Finding the Fourth Proportional to 10,170.59, 15,261.65 and 5,490.54

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Solution

The fourth proportional to 10,170.59, 15,261.65 and 5,490.54 is: 8,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.59 : 15,261.65 = 5,490.54 : x
  2. Step 2: Convert to fraction form
    10,170.59/15,261.65 = 5,490.54/x
  3. Step 3: Cross multiply
    10,170.59x = 15,261.65 × 5,490.54
  4. Step 4: Simplify right side
    10,170.59x = 83,794,672.34
  5. Step 5: Solve for x
    x = 83,794,672.34/10,170.59
  6. Step 6: Final answer
    x = 8,238.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.