Home / 17,487.36-24,140.64-12,778.56

Finding the Fourth Proportional to 17,487.36, 24,140.64 and 12,778.56

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Solution

The fourth proportional to 17,487.36, 24,140.64 and 12,778.56 is: 17,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,487.36 : 24,140.64 = 12,778.56 : x
  2. Step 2: Convert to fraction form
    17,487.36/24,140.64 = 12,778.56/x
  3. Step 3: Cross multiply
    17,487.36x = 24,140.64 × 12,778.56
  4. Step 4: Simplify right side
    17,487.36x = 308,482,616.68
  5. Step 5: Solve for x
    x = 308,482,616.68/17,487.36
  6. Step 6: Final answer
    x = 17,640.32

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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.