Home / 9,221.27-12,726.43-5,242.98

Finding the Fourth Proportional to 9,221.27, 12,726.43 and 5,242.98

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Solution

The fourth proportional to 9,221.27, 12,726.43 and 5,242.98 is: 7,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.27 : 12,726.43 = 5,242.98 : x
  2. Step 2: Convert to fraction form
    9,221.27/12,726.43 = 5,242.98/x
  3. Step 3: Cross multiply
    9,221.27x = 12,726.43 × 5,242.98
  4. Step 4: Simplify right side
    9,221.27x = 66,724,417.96
  5. Step 5: Solve for x
    x = 66,724,417.96/9,221.27
  6. Step 6: Final answer
    x = 7,235.92

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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.