Home / 13,230.47-18,256.83-7,851.97

Finding the Fourth Proportional to 13,230.47, 18,256.83 and 7,851.97

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Solution

The fourth proportional to 13,230.47, 18,256.83 and 7,851.97 is: 10,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.47 : 18,256.83 = 7,851.97 : x
  2. Step 2: Convert to fraction form
    13,230.47/18,256.83 = 7,851.97/x
  3. Step 3: Cross multiply
    13,230.47x = 18,256.83 × 7,851.97
  4. Step 4: Simplify right side
    13,230.47x = 143,352,074.83
  5. Step 5: Solve for x
    x = 143,352,074.83/13,230.47
  6. Step 6: Final answer
    x = 10,834.99

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Similar ratio
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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.