Home / 13,906.08-20,862.72-6,116.40

Finding the Fourth Proportional to 13,906.08, 20,862.72 and 6,116.40

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Solution

The fourth proportional to 13,906.08, 20,862.72 and 6,116.40 is: 9,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.08 : 20,862.72 = 6,116.40 : x
  2. Step 2: Convert to fraction form
    13,906.08/20,862.72 = 6,116.40/x
  3. Step 3: Cross multiply
    13,906.08x = 20,862.72 × 6,116.40
  4. Step 4: Simplify right side
    13,906.08x = 127,604,740.61
  5. Step 5: Solve for x
    x = 127,604,740.61/13,906.08
  6. Step 6: Final answer
    x = 9,176.18

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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.