Home / 13,341.07-18,409.71-7,372.66

Finding the Fourth Proportional to 13,341.07, 18,409.71 and 7,372.66

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Solution

The fourth proportional to 13,341.07, 18,409.71 and 7,372.66 is: 10,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.07 : 18,409.71 = 7,372.66 : x
  2. Step 2: Convert to fraction form
    13,341.07/18,409.71 = 7,372.66/x
  3. Step 3: Cross multiply
    13,341.07x = 18,409.71 × 7,372.66
  4. Step 4: Simplify right side
    13,341.07x = 135,728,532.53
  5. Step 5: Solve for x
    x = 135,728,532.53/13,341.07
  6. Step 6: Final answer
    x = 10,173.74

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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.