Home / 13,050.30-18,009.50-7,385.26

Finding the Fourth Proportional to 13,050.30, 18,009.50 and 7,385.26

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Solution

The fourth proportional to 13,050.30, 18,009.50 and 7,385.26 is: 10,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.30 : 18,009.50 = 7,385.26 : x
  2. Step 2: Convert to fraction form
    13,050.30/18,009.50 = 7,385.26/x
  3. Step 3: Cross multiply
    13,050.30x = 18,009.50 × 7,385.26
  4. Step 4: Simplify right side
    13,050.30x = 133,004,839.97
  5. Step 5: Solve for x
    x = 133,004,839.97/13,050.30
  6. Step 6: Final answer
    x = 10,191.71

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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.