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Finding the Fourth Proportional to 6,287.60, 8,737.06 and 6,219.26

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Solution

The fourth proportional to 6,287.60, 8,737.06 and 6,219.26 is: 8,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.60 : 8,737.06 = 6,219.26 : x
  2. Step 2: Convert to fraction form
    6,287.60/8,737.06 = 6,219.26/x
  3. Step 3: Cross multiply
    6,287.60x = 8,737.06 × 6,219.26
  4. Step 4: Simplify right side
    6,287.60x = 54,338,047.78
  5. Step 5: Solve for x
    x = 54,338,047.78/6,287.60
  6. Step 6: Final answer
    x = 8,642.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.