Home / 8,982.55-12,393.84-5,445.01

Finding the Fourth Proportional to 8,982.55, 12,393.84 and 5,445.01

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Solution

The fourth proportional to 8,982.55, 12,393.84 and 5,445.01 is: 7,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.55 : 12,393.84 = 5,445.01 : x
  2. Step 2: Convert to fraction form
    8,982.55/12,393.84 = 5,445.01/x
  3. Step 3: Cross multiply
    8,982.55x = 12,393.84 × 5,445.01
  4. Step 4: Simplify right side
    8,982.55x = 67,484,582.74
  5. Step 5: Solve for x
    x = 67,484,582.74/8,982.55
  6. Step 6: Final answer
    x = 7,512.85

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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.