Home / 12,321.46-17,002.65-7,015.24

Finding the Fourth Proportional to 12,321.46, 17,002.65 and 7,015.24

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Solution

The fourth proportional to 12,321.46, 17,002.65 and 7,015.24 is: 9,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.46 : 17,002.65 = 7,015.24 : x
  2. Step 2: Convert to fraction form
    12,321.46/17,002.65 = 7,015.24/x
  3. Step 3: Cross multiply
    12,321.46x = 17,002.65 × 7,015.24
  4. Step 4: Simplify right side
    12,321.46x = 119,277,670.39
  5. Step 5: Solve for x
    x = 119,277,670.39/12,321.46
  6. Step 6: Final answer
    x = 9,680.48

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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.