Home / 18,146.79-25,036.16-11,862.81

Finding the Fourth Proportional to 18,146.79, 25,036.16 and 11,862.81

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Solution

The fourth proportional to 18,146.79, 25,036.16 and 11,862.81 is: 16,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.79 : 25,036.16 = 11,862.81 : x
  2. Step 2: Convert to fraction form
    18,146.79/25,036.16 = 11,862.81/x
  3. Step 3: Cross multiply
    18,146.79x = 25,036.16 × 11,862.81
  4. Step 4: Simplify right side
    18,146.79x = 296,999,149.90
  5. Step 5: Solve for x
    x = 296,999,149.90/18,146.79
  6. Step 6: Final answer
    x = 16,366.48

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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.