Home / 12,886.67-19,324.53-4,568.78

Finding the Fourth Proportional to 12,886.67, 19,324.53 and 4,568.78

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Solution

The fourth proportional to 12,886.67, 19,324.53 and 4,568.78 is: 6,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.67 : 19,324.53 = 4,568.78 : x
  2. Step 2: Convert to fraction form
    12,886.67/19,324.53 = 4,568.78/x
  3. Step 3: Cross multiply
    12,886.67x = 19,324.53 × 4,568.78
  4. Step 4: Simplify right side
    12,886.67x = 88,289,478.63
  5. Step 5: Solve for x
    x = 88,289,478.63/12,886.67
  6. Step 6: Final answer
    x = 6,851.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.