Home / 11,678.22-16,118.13-7,314.57

Finding the Fourth Proportional to 11,678.22, 16,118.13 and 7,314.57

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Solution

The fourth proportional to 11,678.22, 16,118.13 and 7,314.57 is: 10,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.22 : 16,118.13 = 7,314.57 : x
  2. Step 2: Convert to fraction form
    11,678.22/16,118.13 = 7,314.57/x
  3. Step 3: Cross multiply
    11,678.22x = 16,118.13 × 7,314.57
  4. Step 4: Simplify right side
    11,678.22x = 117,897,157.14
  5. Step 5: Solve for x
    x = 117,897,157.14/11,678.22
  6. Step 6: Final answer
    x = 10,095.47

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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.