Home / 18,701.70-28,045.56-6,219.42

Finding the Fourth Proportional to 18,701.70, 28,045.56 and 6,219.42

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Solution

The fourth proportional to 18,701.70, 28,045.56 and 6,219.42 is: 9,326.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.70 : 28,045.56 = 6,219.42 : x
  2. Step 2: Convert to fraction form
    18,701.70/28,045.56 = 6,219.42/x
  3. Step 3: Cross multiply
    18,701.70x = 28,045.56 × 6,219.42
  4. Step 4: Simplify right side
    18,701.70x = 174,427,116.78
  5. Step 5: Solve for x
    x = 174,427,116.78/18,701.70
  6. Step 6: Final answer
    x = 9,326.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.