Home / 18,299.83-25,243.68-12,637.55

Finding the Fourth Proportional to 18,299.83, 25,243.68 and 12,637.55

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Solution

The fourth proportional to 18,299.83, 25,243.68 and 12,637.55 is: 17,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.83 : 25,243.68 = 12,637.55 : x
  2. Step 2: Convert to fraction form
    18,299.83/25,243.68 = 12,637.55/x
  3. Step 3: Cross multiply
    18,299.83x = 25,243.68 × 12,637.55
  4. Step 4: Simplify right side
    18,299.83x = 319,018,173.44
  5. Step 5: Solve for x
    x = 319,018,173.44/18,299.83
  6. Step 6: Final answer
    x = 17,432.85

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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.