Home / 13,072.40-19,565.40-10,134.80

Finding the Fourth Proportional to 13,072.40, 19,565.40 and 10,134.80

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Solution

The fourth proportional to 13,072.40, 19,565.40 and 10,134.80 is: 15,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.40 : 19,565.40 = 10,134.80 : x
  2. Step 2: Convert to fraction form
    13,072.40/19,565.40 = 10,134.80/x
  3. Step 3: Cross multiply
    13,072.40x = 19,565.40 × 10,134.80
  4. Step 4: Simplify right side
    13,072.40x = 198,291,415.92
  5. Step 5: Solve for x
    x = 198,291,415.92/13,072.40
  6. Step 6: Final answer
    x = 15,168.71

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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.