Home / 18,462.81-25,478.69-11,393.34

Finding the Fourth Proportional to 18,462.81, 25,478.69 and 11,393.34

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Solution

The fourth proportional to 18,462.81, 25,478.69 and 11,393.34 is: 15,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.81 : 25,478.69 = 11,393.34 : x
  2. Step 2: Convert to fraction form
    18,462.81/25,478.69 = 11,393.34/x
  3. Step 3: Cross multiply
    18,462.81x = 25,478.69 × 11,393.34
  4. Step 4: Simplify right side
    18,462.81x = 290,287,377.92
  5. Step 5: Solve for x
    x = 290,287,377.92/18,462.81
  6. Step 6: Final answer
    x = 15,722.82

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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.