Home / 18,462.89-25,478.66-10,079.39

Finding the Fourth Proportional to 18,462.89, 25,478.66 and 10,079.39

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Solution

The fourth proportional to 18,462.89, 25,478.66 and 10,079.39 is: 13,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.89 : 25,478.66 = 10,079.39 : x
  2. Step 2: Convert to fraction form
    18,462.89/25,478.66 = 10,079.39/x
  3. Step 3: Cross multiply
    18,462.89x = 25,478.66 × 10,079.39
  4. Step 4: Simplify right side
    18,462.89x = 256,809,281.17
  5. Step 5: Solve for x
    x = 256,809,281.17/18,462.89
  6. Step 6: Final answer
    x = 13,909.49

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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.