Home / 12,871.95-17,765.60-7,567.04

Finding the Fourth Proportional to 12,871.95, 17,765.60 and 7,567.04

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Solution

The fourth proportional to 12,871.95, 17,765.60 and 7,567.04 is: 10,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.95 : 17,765.60 = 7,567.04 : x
  2. Step 2: Convert to fraction form
    12,871.95/17,765.60 = 7,567.04/x
  3. Step 3: Cross multiply
    12,871.95x = 17,765.60 × 7,567.04
  4. Step 4: Simplify right side
    12,871.95x = 134,432,879.16
  5. Step 5: Solve for x
    x = 134,432,879.16/12,871.95
  6. Step 6: Final answer
    x = 10,443.86

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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.