Home / 18,557.16-25,642.82-13,512.62

Finding the Fourth Proportional to 18,557.16, 25,642.82 and 13,512.62

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Solution

The fourth proportional to 18,557.16, 25,642.82 and 13,512.62 is: 18,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.16 : 25,642.82 = 13,512.62 : x
  2. Step 2: Convert to fraction form
    18,557.16/25,642.82 = 13,512.62/x
  3. Step 3: Cross multiply
    18,557.16x = 25,642.82 × 13,512.62
  4. Step 4: Simplify right side
    18,557.16x = 346,501,682.39
  5. Step 5: Solve for x
    x = 346,501,682.39/18,557.16
  6. Step 6: Final answer
    x = 18,672.13

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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.