Home / 11,974.61-17,981.93-7,482.13

Finding the Fourth Proportional to 11,974.61, 17,981.93 and 7,482.13

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Solution

The fourth proportional to 11,974.61, 17,981.93 and 7,482.13 is: 11,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.61 : 17,981.93 = 7,482.13 : x
  2. Step 2: Convert to fraction form
    11,974.61/17,981.93 = 7,482.13/x
  3. Step 3: Cross multiply
    11,974.61x = 17,981.93 × 7,482.13
  4. Step 4: Simplify right side
    11,974.61x = 134,543,111.66
  5. Step 5: Solve for x
    x = 134,543,111.66/11,974.61
  6. Step 6: Final answer
    x = 11,235.70

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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.