Home / 10,357.62-15,543.45-3,784.20

Finding the Fourth Proportional to 10,357.62, 15,543.45 and 3,784.20

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Solution

The fourth proportional to 10,357.62, 15,543.45 and 3,784.20 is: 5,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.62 : 15,543.45 = 3,784.20 : x
  2. Step 2: Convert to fraction form
    10,357.62/15,543.45 = 3,784.20/x
  3. Step 3: Cross multiply
    10,357.62x = 15,543.45 × 3,784.20
  4. Step 4: Simplify right side
    10,357.62x = 58,819,523.49
  5. Step 5: Solve for x
    x = 58,819,523.49/10,357.62
  6. Step 6: Final answer
    x = 5,678.86

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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.