Home / 10,117.31-15,165.48-3,875.70

Finding the Fourth Proportional to 10,117.31, 15,165.48 and 3,875.70

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Solution

The fourth proportional to 10,117.31, 15,165.48 and 3,875.70 is: 5,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.31 : 15,165.48 = 3,875.70 : x
  2. Step 2: Convert to fraction form
    10,117.31/15,165.48 = 3,875.70/x
  3. Step 3: Cross multiply
    10,117.31x = 15,165.48 × 3,875.70
  4. Step 4: Simplify right side
    10,117.31x = 58,776,815.13
  5. Step 5: Solve for x
    x = 58,776,815.13/10,117.31
  6. Step 6: Final answer
    x = 5,809.53

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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.