Home / 13,635.12-20,427.12-10,864.92

Finding the Fourth Proportional to 13,635.12, 20,427.12 and 10,864.92

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Solution

The fourth proportional to 13,635.12, 20,427.12 and 10,864.92 is: 16,277.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.12 : 20,427.12 = 10,864.92 : x
  2. Step 2: Convert to fraction form
    13,635.12/20,427.12 = 10,864.92/x
  3. Step 3: Cross multiply
    13,635.12x = 20,427.12 × 10,864.92
  4. Step 4: Simplify right side
    13,635.12x = 221,939,024.63
  5. Step 5: Solve for x
    x = 221,939,024.63/13,635.12
  6. Step 6: Final answer
    x = 16,277.01

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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.