Home / 6,617.28-9,919.36-4,276.88

Finding the Fourth Proportional to 6,617.28, 9,919.36 and 4,276.88

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Solution

The fourth proportional to 6,617.28, 9,919.36 and 4,276.88 is: 6,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.28 : 9,919.36 = 4,276.88 : x
  2. Step 2: Convert to fraction form
    6,617.28/9,919.36 = 4,276.88/x
  3. Step 3: Cross multiply
    6,617.28x = 9,919.36 × 4,276.88
  4. Step 4: Simplify right side
    6,617.28x = 42,423,912.40
  5. Step 5: Solve for x
    x = 42,423,912.40/6,617.28
  6. Step 6: Final answer
    x = 6,411.08

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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.