Home / 9,148.60-12,620.34-5,369.24

Finding the Fourth Proportional to 9,148.60, 12,620.34 and 5,369.24

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Solution

The fourth proportional to 9,148.60, 12,620.34 and 5,369.24 is: 7,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.60 : 12,620.34 = 5,369.24 : x
  2. Step 2: Convert to fraction form
    9,148.60/12,620.34 = 5,369.24/x
  3. Step 3: Cross multiply
    9,148.60x = 12,620.34 × 5,369.24
  4. Step 4: Simplify right side
    9,148.60x = 67,761,634.34
  5. Step 5: Solve for x
    x = 67,761,634.34/9,148.60
  6. Step 6: Final answer
    x = 7,406.78

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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.