Home / 12,567.31-18,851.60-3,207.40

Finding the Fourth Proportional to 12,567.31, 18,851.60 and 3,207.40

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Solution

The fourth proportional to 12,567.31, 18,851.60 and 3,207.40 is: 4,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,567.31 : 18,851.60 = 3,207.40 : x
  2. Step 2: Convert to fraction form
    12,567.31/18,851.60 = 3,207.40/x
  3. Step 3: Cross multiply
    12,567.31x = 18,851.60 × 3,207.40
  4. Step 4: Simplify right side
    12,567.31x = 60,464,582.73
  5. Step 5: Solve for x
    x = 60,464,582.73/12,567.31
  6. Step 6: Final answer
    x = 4,811.26

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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.