Home / 13,742.70-18,959.56-8,968.26

Finding the Fourth Proportional to 13,742.70, 18,959.56 and 8,968.26

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Solution

The fourth proportional to 13,742.70, 18,959.56 and 8,968.26 is: 12,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.70 : 18,959.56 = 8,968.26 : x
  2. Step 2: Convert to fraction form
    13,742.70/18,959.56 = 8,968.26/x
  3. Step 3: Cross multiply
    13,742.70x = 18,959.56 × 8,968.26
  4. Step 4: Simplify right side
    13,742.70x = 170,034,263.57
  5. Step 5: Solve for x
    x = 170,034,263.57/13,742.70
  6. Step 6: Final answer
    x = 12,372.70

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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.