Home / 13,309.98-18,367.90-7,341.66

Finding the Fourth Proportional to 13,309.98, 18,367.90 and 7,341.66

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Solution

The fourth proportional to 13,309.98, 18,367.90 and 7,341.66 is: 10,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.98 : 18,367.90 = 7,341.66 : x
  2. Step 2: Convert to fraction form
    13,309.98/18,367.90 = 7,341.66/x
  3. Step 3: Cross multiply
    13,309.98x = 18,367.90 × 7,341.66
  4. Step 4: Simplify right side
    13,309.98x = 134,850,840.01
  5. Step 5: Solve for x
    x = 134,850,840.01/13,309.98
  6. Step 6: Final answer
    x = 10,131.56

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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.