Home / 26,567.78-39,860.88-11,787.05

Finding the Fourth Proportional to 26,567.78, 39,860.88 and 11,787.05

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Solution

The fourth proportional to 26,567.78, 39,860.88 and 11,787.05 is: 17,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,567.78 : 39,860.88 = 11,787.05 : x
  2. Step 2: Convert to fraction form
    26,567.78/39,860.88 = 11,787.05/x
  3. Step 3: Cross multiply
    26,567.78x = 39,860.88 × 11,787.05
  4. Step 4: Simplify right side
    26,567.78x = 469,841,986.30
  5. Step 5: Solve for x
    x = 469,841,986.30/26,567.78
  6. Step 6: Final answer
    x = 17,684.66

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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.