Home / 10,990.28-15,166.60-6,516.22

Finding the Fourth Proportional to 10,990.28, 15,166.60 and 6,516.22

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Solution

The fourth proportional to 10,990.28, 15,166.60 and 6,516.22 is: 8,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.28 : 15,166.60 = 6,516.22 : x
  2. Step 2: Convert to fraction form
    10,990.28/15,166.60 = 6,516.22/x
  3. Step 3: Cross multiply
    10,990.28x = 15,166.60 × 6,516.22
  4. Step 4: Simplify right side
    10,990.28x = 98,828,902.25
  5. Step 5: Solve for x
    x = 98,828,902.25/10,990.28
  6. Step 6: Final answer
    x = 8,992.39

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Double scale
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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.