Home / 10,324.08-15,480.72-5,381.64

Finding the Fourth Proportional to 10,324.08, 15,480.72 and 5,381.64

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Solution

The fourth proportional to 10,324.08, 15,480.72 and 5,381.64 is: 8,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,324.08 : 15,480.72 = 5,381.64 : x
  2. Step 2: Convert to fraction form
    10,324.08/15,480.72 = 5,381.64/x
  3. Step 3: Cross multiply
    10,324.08x = 15,480.72 × 5,381.64
  4. Step 4: Simplify right side
    10,324.08x = 83,311,661.98
  5. Step 5: Solve for x
    x = 83,311,661.98/10,324.08
  6. Step 6: Final answer
    x = 8,069.65

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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.