Home / 10,445.40-15,665.04-3,047.88

Finding the Fourth Proportional to 10,445.40, 15,665.04 and 3,047.88

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Solution

The fourth proportional to 10,445.40, 15,665.04 and 3,047.88 is: 4,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.40 : 15,665.04 = 3,047.88 : x
  2. Step 2: Convert to fraction form
    10,445.40/15,665.04 = 3,047.88/x
  3. Step 3: Cross multiply
    10,445.40x = 15,665.04 × 3,047.88
  4. Step 4: Simplify right side
    10,445.40x = 47,745,162.12
  5. Step 5: Solve for x
    x = 47,745,162.12/10,445.40
  6. Step 6: Final answer
    x = 4,570.93

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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.