Home / 6,749.80-10,123.42-1,818.20

Finding the Fourth Proportional to 6,749.80, 10,123.42 and 1,818.20

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Solution

The fourth proportional to 6,749.80, 10,123.42 and 1,818.20 is: 2,726.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.80 : 10,123.42 = 1,818.20 : x
  2. Step 2: Convert to fraction form
    6,749.80/10,123.42 = 1,818.20/x
  3. Step 3: Cross multiply
    6,749.80x = 10,123.42 × 1,818.20
  4. Step 4: Simplify right side
    6,749.80x = 18,406,402.24
  5. Step 5: Solve for x
    x = 18,406,402.24/6,749.80
  6. Step 6: Final answer
    x = 2,726.96

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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.