Home / 10,238.13-14,133.42-7,721.33

Finding the Fourth Proportional to 10,238.13, 14,133.42 and 7,721.33

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Solution

The fourth proportional to 10,238.13, 14,133.42 and 7,721.33 is: 10,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.13 : 14,133.42 = 7,721.33 : x
  2. Step 2: Convert to fraction form
    10,238.13/14,133.42 = 7,721.33/x
  3. Step 3: Cross multiply
    10,238.13x = 14,133.42 × 7,721.33
  4. Step 4: Simplify right side
    10,238.13x = 109,128,729.18
  5. Step 5: Solve for x
    x = 109,128,729.18/10,238.13
  6. Step 6: Final answer
    x = 10,659.05

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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.