Home / 9,221.30-12,726.15-5,243.66

Finding the Fourth Proportional to 9,221.30, 12,726.15 and 5,243.66

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Solution

The fourth proportional to 9,221.30, 12,726.15 and 5,243.66 is: 7,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.30 : 12,726.15 = 5,243.66 : x
  2. Step 2: Convert to fraction form
    9,221.30/12,726.15 = 5,243.66/x
  3. Step 3: Cross multiply
    9,221.30x = 12,726.15 × 5,243.66
  4. Step 4: Simplify right side
    9,221.30x = 66,731,603.71
  5. Step 5: Solve for x
    x = 66,731,603.71/9,221.30
  6. Step 6: Final answer
    x = 7,236.68

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1.5x scale

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.