Home / 15,190.11-20,938.48-10,401.77

Finding the Fourth Proportional to 15,190.11, 20,938.48 and 10,401.77

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Solution

The fourth proportional to 15,190.11, 20,938.48 and 10,401.77 is: 14,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.11 : 20,938.48 = 10,401.77 : x
  2. Step 2: Convert to fraction form
    15,190.11/20,938.48 = 10,401.77/x
  3. Step 3: Cross multiply
    15,190.11x = 20,938.48 × 10,401.77
  4. Step 4: Simplify right side
    15,190.11x = 217,797,279.45
  5. Step 5: Solve for x
    x = 217,797,279.45/15,190.11
  6. Step 6: Final answer
    x = 14,338.10

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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.