Home / 15,116.97-20,862.95-8,829.93

Finding the Fourth Proportional to 15,116.97, 20,862.95 and 8,829.93

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Solution

The fourth proportional to 15,116.97, 20,862.95 and 8,829.93 is: 12,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.97 : 20,862.95 = 8,829.93 : x
  2. Step 2: Convert to fraction form
    15,116.97/20,862.95 = 8,829.93/x
  3. Step 3: Cross multiply
    15,116.97x = 20,862.95 × 8,829.93
  4. Step 4: Simplify right side
    15,116.97x = 184,218,343.94
  5. Step 5: Solve for x
    x = 184,218,343.94/15,116.97
  6. Step 6: Final answer
    x = 12,186.19

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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.