Home / 10,485.28-15,726.84-3,465.04

Finding the Fourth Proportional to 10,485.28, 15,726.84 and 3,465.04

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Solution

The fourth proportional to 10,485.28, 15,726.84 and 3,465.04 is: 5,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.28 : 15,726.84 = 3,465.04 : x
  2. Step 2: Convert to fraction form
    10,485.28/15,726.84 = 3,465.04/x
  3. Step 3: Cross multiply
    10,485.28x = 15,726.84 × 3,465.04
  4. Step 4: Simplify right side
    10,485.28x = 54,494,129.67
  5. Step 5: Solve for x
    x = 54,494,129.67/10,485.28
  6. Step 6: Final answer
    x = 5,197.20

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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.