Home / 19,401-26,769.24-11,440.32

Finding the Fourth Proportional to 19,401, 26,769.24 and 11,440.32

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Solution

The fourth proportional to 19,401, 26,769.24 and 11,440.32 is: 15,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401 : 26,769.24 = 11,440.32 : x
  2. Step 2: Convert to fraction form
    19,401/26,769.24 = 11,440.32/x
  3. Step 3: Cross multiply
    19,401x = 26,769.24 × 11,440.32
  4. Step 4: Simplify right side
    19,401x = 306,248,671.76
  5. Step 5: Solve for x
    x = 306,248,671.76/19,401
  6. Step 6: Final answer
    x = 15,785.20

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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.