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Finding the Fourth Proportional to 8,300.90, 12,451.35 and 5,482.10

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Solution

The fourth proportional to 8,300.90, 12,451.35 and 5,482.10 is: 8,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300.90 : 12,451.35 = 5,482.10 : x
  2. Step 2: Convert to fraction form
    8,300.90/12,451.35 = 5,482.10/x
  3. Step 3: Cross multiply
    8,300.90x = 12,451.35 × 5,482.10
  4. Step 4: Simplify right side
    8,300.90x = 68,259,545.84
  5. Step 5: Solve for x
    x = 68,259,545.84/8,300.90
  6. Step 6: Final answer
    x = 8,223.15

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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.