Home / 12,516.48-17,272.84-6,851.20

Finding the Fourth Proportional to 12,516.48, 17,272.84 and 6,851.20

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Solution

The fourth proportional to 12,516.48, 17,272.84 and 6,851.20 is: 9,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.48 : 17,272.84 = 6,851.20 : x
  2. Step 2: Convert to fraction form
    12,516.48/17,272.84 = 6,851.20/x
  3. Step 3: Cross multiply
    12,516.48x = 17,272.84 × 6,851.20
  4. Step 4: Simplify right side
    12,516.48x = 118,339,681.41
  5. Step 5: Solve for x
    x = 118,339,681.41/12,516.48
  6. Step 6: Final answer
    x = 9,454.71

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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.