Home / 15,341.28-21,170.40-8,627.52

Finding the Fourth Proportional to 15,341.28, 21,170.40 and 8,627.52

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Solution

The fourth proportional to 15,341.28, 21,170.40 and 8,627.52 is: 11,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.28 : 21,170.40 = 8,627.52 : x
  2. Step 2: Convert to fraction form
    15,341.28/21,170.40 = 8,627.52/x
  3. Step 3: Cross multiply
    15,341.28x = 21,170.40 × 8,627.52
  4. Step 4: Simplify right side
    15,341.28x = 182,648,049.41
  5. Step 5: Solve for x
    x = 182,648,049.41/15,341.28
  6. Step 6: Final answer
    x = 11,905.66

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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.