Home / 10,538.55-15,807.66-3,143.04

Finding the Fourth Proportional to 10,538.55, 15,807.66 and 3,143.04

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Solution

The fourth proportional to 10,538.55, 15,807.66 and 3,143.04 is: 4,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.55 : 15,807.66 = 3,143.04 : x
  2. Step 2: Convert to fraction form
    10,538.55/15,807.66 = 3,143.04/x
  3. Step 3: Cross multiply
    10,538.55x = 15,807.66 × 3,143.04
  4. Step 4: Simplify right side
    10,538.55x = 49,684,107.69
  5. Step 5: Solve for x
    x = 49,684,107.69/10,538.55
  6. Step 6: Final answer
    x = 4,714.51

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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.