Home / 13,434.33-18,537.91-7,768.23

Finding the Fourth Proportional to 13,434.33, 18,537.91 and 7,768.23

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Solution

The fourth proportional to 13,434.33, 18,537.91 and 7,768.23 is: 10,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.33 : 18,537.91 = 7,768.23 : x
  2. Step 2: Convert to fraction form
    13,434.33/18,537.91 = 7,768.23/x
  3. Step 3: Cross multiply
    13,434.33x = 18,537.91 × 7,768.23
  4. Step 4: Simplify right side
    13,434.33x = 144,006,659.66
  5. Step 5: Solve for x
    x = 144,006,659.66/13,434.33
  6. Step 6: Final answer
    x = 10,719.30

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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.