Home / 10,665.60-15,995.52-5,399.04

Finding the Fourth Proportional to 10,665.60, 15,995.52 and 5,399.04

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Solution

The fourth proportional to 10,665.60, 15,995.52 and 5,399.04 is: 8,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.60 : 15,995.52 = 5,399.04 : x
  2. Step 2: Convert to fraction form
    10,665.60/15,995.52 = 5,399.04/x
  3. Step 3: Cross multiply
    10,665.60x = 15,995.52 × 5,399.04
  4. Step 4: Simplify right side
    10,665.60x = 86,360,452.30
  5. Step 5: Solve for x
    x = 86,360,452.30/10,665.60
  6. Step 6: Final answer
    x = 8,097.10

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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.