Home / 13,920.12-20,867.38-6,017.68

Finding the Fourth Proportional to 13,920.12, 20,867.38 and 6,017.68

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Solution

The fourth proportional to 13,920.12, 20,867.38 and 6,017.68 is: 9,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.12 : 20,867.38 = 6,017.68 : x
  2. Step 2: Convert to fraction form
    13,920.12/20,867.38 = 6,017.68/x
  3. Step 3: Cross multiply
    13,920.12x = 20,867.38 × 6,017.68
  4. Step 4: Simplify right side
    13,920.12x = 125,573,215.28
  5. Step 5: Solve for x
    x = 125,573,215.28/13,920.12
  6. Step 6: Final answer
    x = 9,020.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.