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Finding the Fourth Proportional to 6,389.57, 8,797.14 and 6,250.14

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Solution

The fourth proportional to 6,389.57, 8,797.14 and 6,250.14 is: 8,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.57 : 8,797.14 = 6,250.14 : x
  2. Step 2: Convert to fraction form
    6,389.57/8,797.14 = 6,250.14/x
  3. Step 3: Cross multiply
    6,389.57x = 8,797.14 × 6,250.14
  4. Step 4: Simplify right side
    6,389.57x = 54,983,356.60
  5. Step 5: Solve for x
    x = 54,983,356.60/6,389.57
  6. Step 6: Final answer
    x = 8,605.18

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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.