Home / 15,023.81-20,732.02-8,309.05

Finding the Fourth Proportional to 15,023.81, 20,732.02 and 8,309.05

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Solution

The fourth proportional to 15,023.81, 20,732.02 and 8,309.05 is: 11,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.81 : 20,732.02 = 8,309.05 : x
  2. Step 2: Convert to fraction form
    15,023.81/20,732.02 = 8,309.05/x
  3. Step 3: Cross multiply
    15,023.81x = 20,732.02 × 8,309.05
  4. Step 4: Simplify right side
    15,023.81x = 172,263,318.18
  5. Step 5: Solve for x
    x = 172,263,318.18/15,023.81
  6. Step 6: Final answer
    x = 11,466.02

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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.