Home / 15,034.20-20,746.89-8,319.43

Finding the Fourth Proportional to 15,034.20, 20,746.89 and 8,319.43

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Solution

The fourth proportional to 15,034.20, 20,746.89 and 8,319.43 is: 11,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.20 : 20,746.89 = 8,319.43 : x
  2. Step 2: Convert to fraction form
    15,034.20/20,746.89 = 8,319.43/x
  3. Step 3: Cross multiply
    15,034.20x = 20,746.89 × 8,319.43
  4. Step 4: Simplify right side
    15,034.20x = 172,602,325.01
  5. Step 5: Solve for x
    x = 172,602,325.01/15,034.20
  6. Step 6: Final answer
    x = 11,480.64

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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.