Home / 10,478.24-15,717.52-2,686.88

Finding the Fourth Proportional to 10,478.24, 15,717.52 and 2,686.88

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Solution

The fourth proportional to 10,478.24, 15,717.52 and 2,686.88 is: 4,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.24 : 15,717.52 = 2,686.88 : x
  2. Step 2: Convert to fraction form
    10,478.24/15,717.52 = 2,686.88/x
  3. Step 3: Cross multiply
    10,478.24x = 15,717.52 × 2,686.88
  4. Step 4: Simplify right side
    10,478.24x = 42,231,090.14
  5. Step 5: Solve for x
    x = 42,231,090.14/10,478.24
  6. Step 6: Final answer
    x = 4,030.36

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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.