Home / 15,540.32-23,290.89-6,645.14

Finding the Fourth Proportional to 15,540.32, 23,290.89 and 6,645.14

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Solution

The fourth proportional to 15,540.32, 23,290.89 and 6,645.14 is: 9,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.32 : 23,290.89 = 6,645.14 : x
  2. Step 2: Convert to fraction form
    15,540.32/23,290.89 = 6,645.14/x
  3. Step 3: Cross multiply
    15,540.32x = 23,290.89 × 6,645.14
  4. Step 4: Simplify right side
    15,540.32x = 154,771,166.07
  5. Step 5: Solve for x
    x = 154,771,166.07/15,540.32
  6. Step 6: Final answer
    x = 9,959.33

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Half scale
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Double scale
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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.