Home / 9,291.74-12,822.35-5,312.61

Finding the Fourth Proportional to 9,291.74, 12,822.35 and 5,312.61

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Solution

The fourth proportional to 9,291.74, 12,822.35 and 5,312.61 is: 7,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.74 : 12,822.35 = 5,312.61 : x
  2. Step 2: Convert to fraction form
    9,291.74/12,822.35 = 5,312.61/x
  3. Step 3: Cross multiply
    9,291.74x = 12,822.35 × 5,312.61
  4. Step 4: Simplify right side
    9,291.74x = 68,120,118.27
  5. Step 5: Solve for x
    x = 68,120,118.27/9,291.74
  6. Step 6: Final answer
    x = 7,331.26

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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.