Home / 9,411.44-12,987.96-5,219.92

Finding the Fourth Proportional to 9,411.44, 12,987.96 and 5,219.92

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Solution

The fourth proportional to 9,411.44, 12,987.96 and 5,219.92 is: 7,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411.44 : 12,987.96 = 5,219.92 : x
  2. Step 2: Convert to fraction form
    9,411.44/12,987.96 = 5,219.92/x
  3. Step 3: Cross multiply
    9,411.44x = 12,987.96 × 5,219.92
  4. Step 4: Simplify right side
    9,411.44x = 67,796,112.16
  5. Step 5: Solve for x
    x = 67,796,112.16/9,411.44
  6. Step 6: Final answer
    x = 7,203.59

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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.