Home / 18,612.88-25,690.80-11,535.46

Finding the Fourth Proportional to 18,612.88, 25,690.80 and 11,535.46

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Solution

The fourth proportional to 18,612.88, 25,690.80 and 11,535.46 is: 15,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.88 : 25,690.80 = 11,535.46 : x
  2. Step 2: Convert to fraction form
    18,612.88/25,690.80 = 11,535.46/x
  3. Step 3: Cross multiply
    18,612.88x = 25,690.80 × 11,535.46
  4. Step 4: Simplify right side
    18,612.88x = 296,355,195.77
  5. Step 5: Solve for x
    x = 296,355,195.77/18,612.88
  6. Step 6: Final answer
    x = 15,922.05

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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.