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Finding the Fourth Proportional to 6,805.62, 10,139.99 and 6,358.50

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Solution

The fourth proportional to 6,805.62, 10,139.99 and 6,358.50 is: 9,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.62 : 10,139.99 = 6,358.50 : x
  2. Step 2: Convert to fraction form
    6,805.62/10,139.99 = 6,358.50/x
  3. Step 3: Cross multiply
    6,805.62x = 10,139.99 × 6,358.50
  4. Step 4: Simplify right side
    6,805.62x = 64,475,094.62
  5. Step 5: Solve for x
    x = 64,475,094.62/6,805.62
  6. Step 6: Final answer
    x = 9,473.80

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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.