Home / 10,109.80-15,154.38-9,856.84

Finding the Fourth Proportional to 10,109.80, 15,154.38 and 9,856.84

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Solution

The fourth proportional to 10,109.80, 15,154.38 and 9,856.84 is: 14,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.80 : 15,154.38 = 9,856.84 : x
  2. Step 2: Convert to fraction form
    10,109.80/15,154.38 = 9,856.84/x
  3. Step 3: Cross multiply
    10,109.80x = 15,154.38 × 9,856.84
  4. Step 4: Simplify right side
    10,109.80x = 149,374,298.96
  5. Step 5: Solve for x
    x = 149,374,298.96/10,109.80
  6. Step 6: Final answer
    x = 14,775.20

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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.