Home / 7,929.68-11,890.28-7,588.88

Finding the Fourth Proportional to 7,929.68, 11,890.28 and 7,588.88

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Solution

The fourth proportional to 7,929.68, 11,890.28 and 7,588.88 is: 11,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.68 : 11,890.28 = 7,588.88 : x
  2. Step 2: Convert to fraction form
    7,929.68/11,890.28 = 7,588.88/x
  3. Step 3: Cross multiply
    7,929.68x = 11,890.28 × 7,588.88
  4. Step 4: Simplify right side
    7,929.68x = 90,233,908.09
  5. Step 5: Solve for x
    x = 90,233,908.09/7,929.68
  6. Step 6: Final answer
    x = 11,379.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.