Home / 10,239.13-14,134.80-7,722.33

Finding the Fourth Proportional to 10,239.13, 14,134.80 and 7,722.33

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Solution

The fourth proportional to 10,239.13, 14,134.80 and 7,722.33 is: 10,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.13 : 14,134.80 = 7,722.33 : x
  2. Step 2: Convert to fraction form
    10,239.13/14,134.80 = 7,722.33/x
  3. Step 3: Cross multiply
    10,239.13x = 14,134.80 × 7,722.33
  4. Step 4: Simplify right side
    10,239.13x = 109,153,590.08
  5. Step 5: Solve for x
    x = 109,153,590.08/10,239.13
  6. Step 6: Final answer
    x = 10,660.44

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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.