Home / 13,309.74-18,367.49-7,341.32

Finding the Fourth Proportional to 13,309.74, 18,367.49 and 7,341.32

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Solution

The fourth proportional to 13,309.74, 18,367.49 and 7,341.32 is: 10,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.74 : 18,367.49 = 7,341.32 : x
  2. Step 2: Convert to fraction form
    13,309.74/18,367.49 = 7,341.32/x
  3. Step 3: Cross multiply
    13,309.74x = 18,367.49 × 7,341.32
  4. Step 4: Simplify right side
    13,309.74x = 134,841,685.96
  5. Step 5: Solve for x
    x = 134,841,685.96/13,309.74
  6. Step 6: Final answer
    x = 10,131.05

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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.