Home / 15,024.23-20,731.85-8,309.69

Finding the Fourth Proportional to 15,024.23, 20,731.85 and 8,309.69

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Solution

The fourth proportional to 15,024.23, 20,731.85 and 8,309.69 is: 11,466.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.23 : 20,731.85 = 8,309.69 : x
  2. Step 2: Convert to fraction form
    15,024.23/20,731.85 = 8,309.69/x
  3. Step 3: Cross multiply
    15,024.23x = 20,731.85 × 8,309.69
  4. Step 4: Simplify right side
    15,024.23x = 172,275,210.32
  5. Step 5: Solve for x
    x = 172,275,210.32/15,024.23
  6. Step 6: Final answer
    x = 11,466.49

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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.