Home / 6,368.44-8,770.66-5,132.78

Finding the Fourth Proportional to 6,368.44, 8,770.66 and 5,132.78

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Solution

The fourth proportional to 6,368.44, 8,770.66 and 5,132.78 is: 7,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.44 : 8,770.66 = 5,132.78 : x
  2. Step 2: Convert to fraction form
    6,368.44/8,770.66 = 5,132.78/x
  3. Step 3: Cross multiply
    6,368.44x = 8,770.66 × 5,132.78
  4. Step 4: Simplify right side
    6,368.44x = 45,017,868.23
  5. Step 5: Solve for x
    x = 45,017,868.23/6,368.44
  6. Step 6: Final answer
    x = 7,068.90

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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.