Home / 13,309.76-18,367.60-7,341.65

Finding the Fourth Proportional to 13,309.76, 18,367.60 and 7,341.65

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Solution

The fourth proportional to 13,309.76, 18,367.60 and 7,341.65 is: 10,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.76 : 18,367.60 = 7,341.65 : x
  2. Step 2: Convert to fraction form
    13,309.76/18,367.60 = 7,341.65/x
  3. Step 3: Cross multiply
    13,309.76x = 18,367.60 × 7,341.65
  4. Step 4: Simplify right side
    13,309.76x = 134,848,398.70
  5. Step 5: Solve for x
    x = 134,848,398.70/13,309.76
  6. Step 6: Final answer
    x = 10,131.55

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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.