Home / 15,405.48-23,105.68-5,542.92

Finding the Fourth Proportional to 15,405.48, 23,105.68 and 5,542.92

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Solution

The fourth proportional to 15,405.48, 23,105.68 and 5,542.92 is: 8,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.48 : 23,105.68 = 5,542.92 : x
  2. Step 2: Convert to fraction form
    15,405.48/23,105.68 = 5,542.92/x
  3. Step 3: Cross multiply
    15,405.48x = 23,105.68 × 5,542.92
  4. Step 4: Simplify right side
    15,405.48x = 128,072,935.79
  5. Step 5: Solve for x
    x = 128,072,935.79/15,405.48
  6. Step 6: Final answer
    x = 8,313.47

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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.