Home / 12,680.35-17,498.46-7,015.63

Finding the Fourth Proportional to 12,680.35, 17,498.46 and 7,015.63

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Solution

The fourth proportional to 12,680.35, 17,498.46 and 7,015.63 is: 9,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.35 : 17,498.46 = 7,015.63 : x
  2. Step 2: Convert to fraction form
    12,680.35/17,498.46 = 7,015.63/x
  3. Step 3: Cross multiply
    12,680.35x = 17,498.46 × 7,015.63
  4. Step 4: Simplify right side
    12,680.35x = 122,762,720.93
  5. Step 5: Solve for x
    x = 122,762,720.93/12,680.35
  6. Step 6: Final answer
    x = 9,681.34

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.