Home / 10,289.28-15,424.20-9,346.44

Finding the Fourth Proportional to 10,289.28, 15,424.20 and 9,346.44

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Solution

The fourth proportional to 10,289.28, 15,424.20 and 9,346.44 is: 14,010.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.28 : 15,424.20 = 9,346.44 : x
  2. Step 2: Convert to fraction form
    10,289.28/15,424.20 = 9,346.44/x
  3. Step 3: Cross multiply
    10,289.28x = 15,424.20 × 9,346.44
  4. Step 4: Simplify right side
    10,289.28x = 144,161,359.85
  5. Step 5: Solve for x
    x = 144,161,359.85/10,289.28
  6. Step 6: Final answer
    x = 14,010.83

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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.