Home / 13,642.11-18,824.78-7,673.66

Finding the Fourth Proportional to 13,642.11, 18,824.78 and 7,673.66

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Solution

The fourth proportional to 13,642.11, 18,824.78 and 7,673.66 is: 10,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.11 : 18,824.78 = 7,673.66 : x
  2. Step 2: Convert to fraction form
    13,642.11/18,824.78 = 7,673.66/x
  3. Step 3: Cross multiply
    13,642.11x = 18,824.78 × 7,673.66
  4. Step 4: Simplify right side
    13,642.11x = 144,454,828.80
  5. Step 5: Solve for x
    x = 144,454,828.80/13,642.11
  6. Step 6: Final answer
    x = 10,588.89

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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.