Home / 10,990.08-15,168.60-10,104.48

Finding the Fourth Proportional to 10,990.08, 15,168.60 and 10,104.48

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Solution

The fourth proportional to 10,990.08, 15,168.60 and 10,104.48 is: 13,946.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.08 : 15,168.60 = 10,104.48 : x
  2. Step 2: Convert to fraction form
    10,990.08/15,168.60 = 10,104.48/x
  3. Step 3: Cross multiply
    10,990.08x = 15,168.60 × 10,104.48
  4. Step 4: Simplify right side
    10,990.08x = 153,270,815.33
  5. Step 5: Solve for x
    x = 153,270,815.33/10,990.08
  6. Step 6: Final answer
    x = 13,946.29

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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.