Home / 13,569.12-18,735.84-8,851.68

Finding the Fourth Proportional to 13,569.12, 18,735.84 and 8,851.68

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Solution

The fourth proportional to 13,569.12, 18,735.84 and 8,851.68 is: 12,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.12 : 18,735.84 = 8,851.68 : x
  2. Step 2: Convert to fraction form
    13,569.12/18,735.84 = 8,851.68/x
  3. Step 3: Cross multiply
    13,569.12x = 18,735.84 × 8,851.68
  4. Step 4: Simplify right side
    13,569.12x = 165,843,660.21
  5. Step 5: Solve for x
    x = 165,843,660.21/13,569.12
  6. Step 6: Final answer
    x = 12,222.14

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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.