Home / 12,742.90-19,114.67-6,167.86

Finding the Fourth Proportional to 12,742.90, 19,114.67 and 6,167.86

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Solution

The fourth proportional to 12,742.90, 19,114.67 and 6,167.86 is: 9,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.90 : 19,114.67 = 6,167.86 : x
  2. Step 2: Convert to fraction form
    12,742.90/19,114.67 = 6,167.86/x
  3. Step 3: Cross multiply
    12,742.90x = 19,114.67 × 6,167.86
  4. Step 4: Simplify right side
    12,742.90x = 117,896,608.51
  5. Step 5: Solve for x
    x = 117,896,608.51/12,742.90
  6. Step 6: Final answer
    x = 9,251.94

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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.