Home / 9,374.40-12,934.80-5,181.84

Finding the Fourth Proportional to 9,374.40, 12,934.80 and 5,181.84

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Solution

The fourth proportional to 9,374.40, 12,934.80 and 5,181.84 is: 7,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374.40 : 12,934.80 = 5,181.84 : x
  2. Step 2: Convert to fraction form
    9,374.40/12,934.80 = 5,181.84/x
  3. Step 3: Cross multiply
    9,374.40x = 12,934.80 × 5,181.84
  4. Step 4: Simplify right side
    9,374.40x = 67,026,064.03
  5. Step 5: Solve for x
    x = 67,026,064.03/9,374.40
  6. Step 6: Final answer
    x = 7,149.90

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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.