Home / 18,436.32-27,656.10-7,345.80

Finding the Fourth Proportional to 18,436.32, 27,656.10 and 7,345.80

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Solution

The fourth proportional to 18,436.32, 27,656.10 and 7,345.80 is: 11,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.32 : 27,656.10 = 7,345.80 : x
  2. Step 2: Convert to fraction form
    18,436.32/27,656.10 = 7,345.80/x
  3. Step 3: Cross multiply
    18,436.32x = 27,656.10 × 7,345.80
  4. Step 4: Simplify right side
    18,436.32x = 203,156,179.38
  5. Step 5: Solve for x
    x = 203,156,179.38/18,436.32
  6. Step 6: Final answer
    x = 11,019.35

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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.