Home / 10,348.08-15,516.60-5,405.76

Finding the Fourth Proportional to 10,348.08, 15,516.60 and 5,405.76

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Solution

The fourth proportional to 10,348.08, 15,516.60 and 5,405.76 is: 8,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.08 : 15,516.60 = 5,405.76 : x
  2. Step 2: Convert to fraction form
    10,348.08/15,516.60 = 5,405.76/x
  3. Step 3: Cross multiply
    10,348.08x = 15,516.60 × 5,405.76
  4. Step 4: Simplify right side
    10,348.08x = 83,879,015.62
  5. Step 5: Solve for x
    x = 83,879,015.62/10,348.08
  6. Step 6: Final answer
    x = 8,105.76

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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.