Home / 14,799.78-20,424.31-8,512.16

Finding the Fourth Proportional to 14,799.78, 20,424.31 and 8,512.16

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Solution

The fourth proportional to 14,799.78, 20,424.31 and 8,512.16 is: 11,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.78 : 20,424.31 = 8,512.16 : x
  2. Step 2: Convert to fraction form
    14,799.78/20,424.31 = 8,512.16/x
  3. Step 3: Cross multiply
    14,799.78x = 20,424.31 × 8,512.16
  4. Step 4: Simplify right side
    14,799.78x = 173,854,994.61
  5. Step 5: Solve for x
    x = 173,854,994.61/14,799.78
  6. Step 6: Final answer
    x = 11,747.13

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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.