Home / 9,439.20-13,026.27-5,190.45

Finding the Fourth Proportional to 9,439.20, 13,026.27 and 5,190.45

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Solution

The fourth proportional to 9,439.20, 13,026.27 and 5,190.45 is: 7,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.20 : 13,026.27 = 5,190.45 : x
  2. Step 2: Convert to fraction form
    9,439.20/13,026.27 = 5,190.45/x
  3. Step 3: Cross multiply
    9,439.20x = 13,026.27 × 5,190.45
  4. Step 4: Simplify right side
    9,439.20x = 67,612,203.12
  5. Step 5: Solve for x
    x = 67,612,203.12/9,439.20
  6. Step 6: Final answer
    x = 7,162.92

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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.