Home / 10,921.14-16,381.80-5,988.08

Finding the Fourth Proportional to 10,921.14, 16,381.80 and 5,988.08

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Solution

The fourth proportional to 10,921.14, 16,381.80 and 5,988.08 is: 8,982.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.14 : 16,381.80 = 5,988.08 : x
  2. Step 2: Convert to fraction form
    10,921.14/16,381.80 = 5,988.08/x
  3. Step 3: Cross multiply
    10,921.14x = 16,381.80 × 5,988.08
  4. Step 4: Simplify right side
    10,921.14x = 98,095,528.94
  5. Step 5: Solve for x
    x = 98,095,528.94/10,921.14
  6. Step 6: Final answer
    x = 8,982.17

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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.