Home / 13,088.70-18,067.11-7,783.50

Finding the Fourth Proportional to 13,088.70, 18,067.11 and 7,783.50

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Solution

The fourth proportional to 13,088.70, 18,067.11 and 7,783.50 is: 10,744.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.70 : 18,067.11 = 7,783.50 : x
  2. Step 2: Convert to fraction form
    13,088.70/18,067.11 = 7,783.50/x
  3. Step 3: Cross multiply
    13,088.70x = 18,067.11 × 7,783.50
  4. Step 4: Simplify right side
    13,088.70x = 140,625,350.69
  5. Step 5: Solve for x
    x = 140,625,350.69/13,088.70
  6. Step 6: Final answer
    x = 10,744.03

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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.