Home / 10,165.89-15,243.84-3,591.12

Finding the Fourth Proportional to 10,165.89, 15,243.84 and 3,591.12

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Solution

The fourth proportional to 10,165.89, 15,243.84 and 3,591.12 is: 5,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,165.89 : 15,243.84 = 3,591.12 : x
  2. Step 2: Convert to fraction form
    10,165.89/15,243.84 = 3,591.12/x
  3. Step 3: Cross multiply
    10,165.89x = 15,243.84 × 3,591.12
  4. Step 4: Simplify right side
    10,165.89x = 54,742,458.70
  5. Step 5: Solve for x
    x = 54,742,458.70/10,165.89
  6. Step 6: Final answer
    x = 5,384.92

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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.