Home / 12,352.73-17,048.63-7,878.29

Finding the Fourth Proportional to 12,352.73, 17,048.63 and 7,878.29

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Solution

The fourth proportional to 12,352.73, 17,048.63 and 7,878.29 is: 10,873.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.73 : 17,048.63 = 7,878.29 : x
  2. Step 2: Convert to fraction form
    12,352.73/17,048.63 = 7,878.29/x
  3. Step 3: Cross multiply
    12,352.73x = 17,048.63 × 7,878.29
  4. Step 4: Simplify right side
    12,352.73x = 134,313,985.70
  5. Step 5: Solve for x
    x = 134,313,985.70/12,352.73
  6. Step 6: Final answer
    x = 10,873.23

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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.