Home / 10,660.23-15,990.48-5,979.51

Finding the Fourth Proportional to 10,660.23, 15,990.48 and 5,979.51

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Solution

The fourth proportional to 10,660.23, 15,990.48 and 5,979.51 is: 8,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.23 : 15,990.48 = 5,979.51 : x
  2. Step 2: Convert to fraction form
    10,660.23/15,990.48 = 5,979.51/x
  3. Step 3: Cross multiply
    10,660.23x = 15,990.48 × 5,979.51
  4. Step 4: Simplify right side
    10,660.23x = 95,615,235.06
  5. Step 5: Solve for x
    x = 95,615,235.06/10,660.23
  6. Step 6: Final answer
    x = 8,969.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.