Home / 13,281.84-18,325.17-8,568.86

Finding the Fourth Proportional to 13,281.84, 18,325.17 and 8,568.86

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Solution

The fourth proportional to 13,281.84, 18,325.17 and 8,568.86 is: 11,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.84 : 18,325.17 = 8,568.86 : x
  2. Step 2: Convert to fraction form
    13,281.84/18,325.17 = 8,568.86/x
  3. Step 3: Cross multiply
    13,281.84x = 18,325.17 × 8,568.86
  4. Step 4: Simplify right side
    13,281.84x = 157,025,724.58
  5. Step 5: Solve for x
    x = 157,025,724.58/13,281.84
  6. Step 6: Final answer
    x = 11,822.59

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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.