Home / 8,820.62-12,171.56-5,283.74

Finding the Fourth Proportional to 8,820.62, 12,171.56 and 5,283.74

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Solution

The fourth proportional to 8,820.62, 12,171.56 and 5,283.74 is: 7,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.62 : 12,171.56 = 5,283.74 : x
  2. Step 2: Convert to fraction form
    8,820.62/12,171.56 = 5,283.74/x
  3. Step 3: Cross multiply
    8,820.62x = 12,171.56 × 5,283.74
  4. Step 4: Simplify right side
    8,820.62x = 64,311,271.16
  5. Step 5: Solve for x
    x = 64,311,271.16/8,820.62
  6. Step 6: Final answer
    x = 7,291.02

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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.