Home / 10,112.22-15,145.20-8,929.67

Finding the Fourth Proportional to 10,112.22, 15,145.20 and 8,929.67

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Solution

The fourth proportional to 10,112.22, 15,145.20 and 8,929.67 is: 13,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.22 : 15,145.20 = 8,929.67 : x
  2. Step 2: Convert to fraction form
    10,112.22/15,145.20 = 8,929.67/x
  3. Step 3: Cross multiply
    10,112.22x = 15,145.20 × 8,929.67
  4. Step 4: Simplify right side
    10,112.22x = 135,241,562.36
  5. Step 5: Solve for x
    x = 135,241,562.36/10,112.22
  6. Step 6: Final answer
    x = 13,374.07

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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.