Home / 13,598.75-20,401.05-4,238.57

Finding the Fourth Proportional to 13,598.75, 20,401.05 and 4,238.57

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Solution

The fourth proportional to 13,598.75, 20,401.05 and 4,238.57 is: 6,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.75 : 20,401.05 = 4,238.57 : x
  2. Step 2: Convert to fraction form
    13,598.75/20,401.05 = 4,238.57/x
  3. Step 3: Cross multiply
    13,598.75x = 20,401.05 × 4,238.57
  4. Step 4: Simplify right side
    13,598.75x = 86,471,278.50
  5. Step 5: Solve for x
    x = 86,471,278.50/13,598.75
  6. Step 6: Final answer
    x = 6,358.77

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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.