Home / 12,320.62-17,008.05-7,850.50

Finding the Fourth Proportional to 12,320.62, 17,008.05 and 7,850.50

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Solution

The fourth proportional to 12,320.62, 17,008.05 and 7,850.50 is: 10,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.62 : 17,008.05 = 7,850.50 : x
  2. Step 2: Convert to fraction form
    12,320.62/17,008.05 = 7,850.50/x
  3. Step 3: Cross multiply
    12,320.62x = 17,008.05 × 7,850.50
  4. Step 4: Simplify right side
    12,320.62x = 133,521,696.53
  5. Step 5: Solve for x
    x = 133,521,696.53/12,320.62
  6. Step 6: Final answer
    x = 10,837.25

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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.