Home / 13,482.48-18,600.78-8,175.36

Finding the Fourth Proportional to 13,482.48, 18,600.78 and 8,175.36

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Solution

The fourth proportional to 13,482.48, 18,600.78 and 8,175.36 is: 11,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.48 : 18,600.78 = 8,175.36 : x
  2. Step 2: Convert to fraction form
    13,482.48/18,600.78 = 8,175.36/x
  3. Step 3: Cross multiply
    13,482.48x = 18,600.78 × 8,175.36
  4. Step 4: Simplify right side
    13,482.48x = 152,068,072.78
  5. Step 5: Solve for x
    x = 152,068,072.78/13,482.48
  6. Step 6: Final answer
    x = 11,278.94

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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.