Home / 15,478.42-23,217.60-5,617.66

Finding the Fourth Proportional to 15,478.42, 23,217.60 and 5,617.66

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Solution

The fourth proportional to 15,478.42, 23,217.60 and 5,617.66 is: 8,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.42 : 23,217.60 = 5,617.66 : x
  2. Step 2: Convert to fraction form
    15,478.42/23,217.60 = 5,617.66/x
  3. Step 3: Cross multiply
    15,478.42x = 23,217.60 × 5,617.66
  4. Step 4: Simplify right side
    15,478.42x = 130,428,582.82
  5. Step 5: Solve for x
    x = 130,428,582.82/15,478.42
  6. Step 6: Final answer
    x = 8,426.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.