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Finding the Fourth Proportional to 6,373.53, 8,779.77 and 5,426.28

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Solution

The fourth proportional to 6,373.53, 8,779.77 and 5,426.28 is: 7,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373.53 : 8,779.77 = 5,426.28 : x
  2. Step 2: Convert to fraction form
    6,373.53/8,779.77 = 5,426.28/x
  3. Step 3: Cross multiply
    6,373.53x = 8,779.77 × 5,426.28
  4. Step 4: Simplify right side
    6,373.53x = 47,641,490.36
  5. Step 5: Solve for x
    x = 47,641,490.36/6,373.53
  6. Step 6: Final answer
    x = 7,474.90

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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.