Home / 11,447.68-15,795.12-8,298.40

Finding the Fourth Proportional to 11,447.68, 15,795.12 and 8,298.40

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Solution

The fourth proportional to 11,447.68, 15,795.12 and 8,298.40 is: 11,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.68 : 15,795.12 = 8,298.40 : x
  2. Step 2: Convert to fraction form
    11,447.68/15,795.12 = 8,298.40/x
  3. Step 3: Cross multiply
    11,447.68x = 15,795.12 × 8,298.40
  4. Step 4: Simplify right side
    11,447.68x = 131,074,223.81
  5. Step 5: Solve for x
    x = 131,074,223.81/11,447.68
  6. Step 6: Final answer
    x = 11,449.85

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Double scale
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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.