Home / 13,151.73-18,148.95-7,843.80

Finding the Fourth Proportional to 13,151.73, 18,148.95 and 7,843.80

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Solution

The fourth proportional to 13,151.73, 18,148.95 and 7,843.80 is: 10,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.73 : 18,148.95 = 7,843.80 : x
  2. Step 2: Convert to fraction form
    13,151.73/18,148.95 = 7,843.80/x
  3. Step 3: Cross multiply
    13,151.73x = 18,148.95 × 7,843.80
  4. Step 4: Simplify right side
    13,151.73x = 142,356,734.01
  5. Step 5: Solve for x
    x = 142,356,734.01/13,151.73
  6. Step 6: Final answer
    x = 10,824.18

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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.