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Finding the Fourth Proportional to 6,987.62, 10,426.96 and 6,366.62

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Solution

The fourth proportional to 6,987.62, 10,426.96 and 6,366.62 is: 9,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.62 : 10,426.96 = 6,366.62 : x
  2. Step 2: Convert to fraction form
    6,987.62/10,426.96 = 6,366.62/x
  3. Step 3: Cross multiply
    6,987.62x = 10,426.96 × 6,366.62
  4. Step 4: Simplify right side
    6,987.62x = 66,384,492.08
  5. Step 5: Solve for x
    x = 66,384,492.08/6,987.62
  6. Step 6: Final answer
    x = 9,500.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.