Home / 13,738.51-20,578.60-9,298.90

Finding the Fourth Proportional to 13,738.51, 20,578.60 and 9,298.90

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Solution

The fourth proportional to 13,738.51, 20,578.60 and 9,298.90 is: 13,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.51 : 20,578.60 = 9,298.90 : x
  2. Step 2: Convert to fraction form
    13,738.51/20,578.60 = 9,298.90/x
  3. Step 3: Cross multiply
    13,738.51x = 20,578.60 × 9,298.90
  4. Step 4: Simplify right side
    13,738.51x = 191,358,343.54
  5. Step 5: Solve for x
    x = 191,358,343.54/13,738.51
  6. Step 6: Final answer
    x = 13,928.61

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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.