Home / 10,928.08-16,397.70-10,111.60

Finding the Fourth Proportional to 10,928.08, 16,397.70 and 10,111.60

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Solution

The fourth proportional to 10,928.08, 16,397.70 and 10,111.60 is: 15,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.08 : 16,397.70 = 10,111.60 : x
  2. Step 2: Convert to fraction form
    10,928.08/16,397.70 = 10,111.60/x
  3. Step 3: Cross multiply
    10,928.08x = 16,397.70 × 10,111.60
  4. Step 4: Simplify right side
    10,928.08x = 165,806,983.32
  5. Step 5: Solve for x
    x = 165,806,983.32/10,928.08
  6. Step 6: Final answer
    x = 15,172.56

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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.