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Finding the Fourth Proportional to 6,957.05, 10,385.03 and 6,443.10

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Solution

The fourth proportional to 6,957.05, 10,385.03 and 6,443.10 is: 9,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957.05 : 10,385.03 = 6,443.10 : x
  2. Step 2: Convert to fraction form
    6,957.05/10,385.03 = 6,443.10/x
  3. Step 3: Cross multiply
    6,957.05x = 10,385.03 × 6,443.10
  4. Step 4: Simplify right side
    6,957.05x = 66,911,754.58
  5. Step 5: Solve for x
    x = 66,911,754.58/6,957.05
  6. Step 6: Final answer
    x = 9,617.84

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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.