Home / 13,126.34-18,114.70-8,022.68

Finding the Fourth Proportional to 13,126.34, 18,114.70 and 8,022.68

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Solution

The fourth proportional to 13,126.34, 18,114.70 and 8,022.68 is: 11,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.34 : 18,114.70 = 8,022.68 : x
  2. Step 2: Convert to fraction form
    13,126.34/18,114.70 = 8,022.68/x
  3. Step 3: Cross multiply
    13,126.34x = 18,114.70 × 8,022.68
  4. Step 4: Simplify right side
    13,126.34x = 145,328,425.02
  5. Step 5: Solve for x
    x = 145,328,425.02/13,126.34
  6. Step 6: Final answer
    x = 11,071.51

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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.