Home / 18,025.40-26,984.85-13,314.12

Finding the Fourth Proportional to 18,025.40, 26,984.85 and 13,314.12

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Solution

The fourth proportional to 18,025.40, 26,984.85 and 13,314.12 is: 19,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.40 : 26,984.85 = 13,314.12 : x
  2. Step 2: Convert to fraction form
    18,025.40/26,984.85 = 13,314.12/x
  3. Step 3: Cross multiply
    18,025.40x = 26,984.85 × 13,314.12
  4. Step 4: Simplify right side
    18,025.40x = 359,279,531.08
  5. Step 5: Solve for x
    x = 359,279,531.08/18,025.40
  6. Step 6: Final answer
    x = 19,931.85

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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.