Home / 13,309.03-18,366.33-7,340.59

Finding the Fourth Proportional to 13,309.03, 18,366.33 and 7,340.59

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Solution

The fourth proportional to 13,309.03, 18,366.33 and 7,340.59 is: 10,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.03 : 18,366.33 = 7,340.59 : x
  2. Step 2: Convert to fraction form
    13,309.03/18,366.33 = 7,340.59/x
  3. Step 3: Cross multiply
    13,309.03x = 18,366.33 × 7,340.59
  4. Step 4: Simplify right side
    13,309.03x = 134,819,698.33
  5. Step 5: Solve for x
    x = 134,819,698.33/13,309.03
  6. Step 6: Final answer
    x = 10,129.94

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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.