Home / 10,509.12-15,765.30-3,582

Finding the Fourth Proportional to 10,509.12, 15,765.30 and 3,582

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Solution

The fourth proportional to 10,509.12, 15,765.30 and 3,582 is: 5,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.12 : 15,765.30 = 3,582 : x
  2. Step 2: Convert to fraction form
    10,509.12/15,765.30 = 3,582/x
  3. Step 3: Cross multiply
    10,509.12x = 15,765.30 × 3,582
  4. Step 4: Simplify right side
    10,509.12x = 56,471,304.60
  5. Step 5: Solve for x
    x = 56,471,304.60/10,509.12
  6. Step 6: Final answer
    x = 5,373.55

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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.