Home / 18,316.98-25,278.03-11,947.74

Finding the Fourth Proportional to 18,316.98, 25,278.03 and 11,947.74

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Solution

The fourth proportional to 18,316.98, 25,278.03 and 11,947.74 is: 16,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.98 : 25,278.03 = 11,947.74 : x
  2. Step 2: Convert to fraction form
    18,316.98/25,278.03 = 11,947.74/x
  3. Step 3: Cross multiply
    18,316.98x = 25,278.03 × 11,947.74
  4. Step 4: Simplify right side
    18,316.98x = 302,015,330.15
  5. Step 5: Solve for x
    x = 302,015,330.15/18,316.98
  6. Step 6: Final answer
    x = 16,488.27

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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.