Home / 8,980.70-12,393.38-5,204.58

Finding the Fourth Proportional to 8,980.70, 12,393.38 and 5,204.58

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Solution

The fourth proportional to 8,980.70, 12,393.38 and 5,204.58 is: 7,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.70 : 12,393.38 = 5,204.58 : x
  2. Step 2: Convert to fraction form
    8,980.70/12,393.38 = 5,204.58/x
  3. Step 3: Cross multiply
    8,980.70x = 12,393.38 × 5,204.58
  4. Step 4: Simplify right side
    8,980.70x = 64,502,311.66
  5. Step 5: Solve for x
    x = 64,502,311.66/8,980.70
  6. Step 6: Final answer
    x = 7,182.33

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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.