Home / 15,147.01-20,900.38-8,432.46

Finding the Fourth Proportional to 15,147.01, 20,900.38 and 8,432.46

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Solution

The fourth proportional to 15,147.01, 20,900.38 and 8,432.46 is: 11,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.01 : 20,900.38 = 8,432.46 : x
  2. Step 2: Convert to fraction form
    15,147.01/20,900.38 = 8,432.46/x
  3. Step 3: Cross multiply
    15,147.01x = 20,900.38 × 8,432.46
  4. Step 4: Simplify right side
    15,147.01x = 176,241,675.63
  5. Step 5: Solve for x
    x = 176,241,675.63/15,147.01
  6. Step 6: Final answer
    x = 11,635.41

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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.