Home / 12,257.07-18,378.18-5,501.43

Finding the Fourth Proportional to 12,257.07, 18,378.18 and 5,501.43

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Solution

The fourth proportional to 12,257.07, 18,378.18 and 5,501.43 is: 8,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.07 : 18,378.18 = 5,501.43 : x
  2. Step 2: Convert to fraction form
    12,257.07/18,378.18 = 5,501.43/x
  3. Step 3: Cross multiply
    12,257.07x = 18,378.18 × 5,501.43
  4. Step 4: Simplify right side
    12,257.07x = 101,106,270.80
  5. Step 5: Solve for x
    x = 101,106,270.80/12,257.07
  6. Step 6: Final answer
    x = 8,248.81

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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.