Home / 13,448.70-20,151.16-8,502.42

Finding the Fourth Proportional to 13,448.70, 20,151.16 and 8,502.42

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Solution

The fourth proportional to 13,448.70, 20,151.16 and 8,502.42 is: 12,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.70 : 20,151.16 = 8,502.42 : x
  2. Step 2: Convert to fraction form
    13,448.70/20,151.16 = 8,502.42/x
  3. Step 3: Cross multiply
    13,448.70x = 20,151.16 × 8,502.42
  4. Step 4: Simplify right side
    13,448.70x = 171,333,625.81
  5. Step 5: Solve for x
    x = 171,333,625.81/13,448.70
  6. Step 6: Final answer
    x = 12,739.79

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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.