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Finding the Fourth Proportional to 6,993.30, 10,489.95 and 5,681.10

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Solution

The fourth proportional to 6,993.30, 10,489.95 and 5,681.10 is: 8,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.30 : 10,489.95 = 5,681.10 : x
  2. Step 2: Convert to fraction form
    6,993.30/10,489.95 = 5,681.10/x
  3. Step 3: Cross multiply
    6,993.30x = 10,489.95 × 5,681.10
  4. Step 4: Simplify right side
    6,993.30x = 59,594,454.95
  5. Step 5: Solve for x
    x = 59,594,454.95/6,993.30
  6. Step 6: Final answer
    x = 8,521.65

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Half scale
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Double scale
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Similar ratio
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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.