Home / 11,030.40-15,221.64-6,314.52

Finding the Fourth Proportional to 11,030.40, 15,221.64 and 6,314.52

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Solution

The fourth proportional to 11,030.40, 15,221.64 and 6,314.52 is: 8,713.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.40 : 15,221.64 = 6,314.52 : x
  2. Step 2: Convert to fraction form
    11,030.40/15,221.64 = 6,314.52/x
  3. Step 3: Cross multiply
    11,030.40x = 15,221.64 × 6,314.52
  4. Step 4: Simplify right side
    11,030.40x = 96,117,350.21
  5. Step 5: Solve for x
    x = 96,117,350.21/11,030.40
  6. Step 6: Final answer
    x = 8,713.86

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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.