Home / 13,765.24-20,502.16-13,698.11

Finding the Fourth Proportional to 13,765.24, 20,502.16 and 13,698.11

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Solution

The fourth proportional to 13,765.24, 20,502.16 and 13,698.11 is: 20,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.24 : 20,502.16 = 13,698.11 : x
  2. Step 2: Convert to fraction form
    13,765.24/20,502.16 = 13,698.11/x
  3. Step 3: Cross multiply
    13,765.24x = 20,502.16 × 13,698.11
  4. Step 4: Simplify right side
    13,765.24x = 280,840,936.98
  5. Step 5: Solve for x
    x = 280,840,936.98/13,765.24
  6. Step 6: Final answer
    x = 20,402.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.