Home / 10,226.60-15,339.90-5,638.76

Finding the Fourth Proportional to 10,226.60, 15,339.90 and 5,638.76

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Solution

The fourth proportional to 10,226.60, 15,339.90 and 5,638.76 is: 8,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.60 : 15,339.90 = 5,638.76 : x
  2. Step 2: Convert to fraction form
    10,226.60/15,339.90 = 5,638.76/x
  3. Step 3: Cross multiply
    10,226.60x = 15,339.90 × 5,638.76
  4. Step 4: Simplify right side
    10,226.60x = 86,498,014.52
  5. Step 5: Solve for x
    x = 86,498,014.52/10,226.60
  6. Step 6: Final answer
    x = 8,458.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.