Home / 10,911.31-15,057.04-6,437.53

Finding the Fourth Proportional to 10,911.31, 15,057.04 and 6,437.53

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Solution

The fourth proportional to 10,911.31, 15,057.04 and 6,437.53 is: 8,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.31 : 15,057.04 = 6,437.53 : x
  2. Step 2: Convert to fraction form
    10,911.31/15,057.04 = 6,437.53/x
  3. Step 3: Cross multiply
    10,911.31x = 15,057.04 × 6,437.53
  4. Step 4: Simplify right side
    10,911.31x = 96,930,076.81
  5. Step 5: Solve for x
    x = 96,930,076.81/10,911.31
  6. Step 6: Final answer
    x = 8,883.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.