Home / 8,982.20-12,395.45-5,206.08

Finding the Fourth Proportional to 8,982.20, 12,395.45 and 5,206.08

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Solution

The fourth proportional to 8,982.20, 12,395.45 and 5,206.08 is: 7,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.20 : 12,395.45 = 5,206.08 : x
  2. Step 2: Convert to fraction form
    8,982.20/12,395.45 = 5,206.08/x
  3. Step 3: Cross multiply
    8,982.20x = 12,395.45 × 5,206.08
  4. Step 4: Simplify right side
    8,982.20x = 64,531,678.31
  5. Step 5: Solve for x
    x = 64,531,678.31/8,982.20
  6. Step 6: Final answer
    x = 7,184.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.