Home / 15,550.41-21,459.10-8,836.65

Finding the Fourth Proportional to 15,550.41, 21,459.10 and 8,836.65

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Solution

The fourth proportional to 15,550.41, 21,459.10 and 8,836.65 is: 12,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.41 : 21,459.10 = 8,836.65 : x
  2. Step 2: Convert to fraction form
    15,550.41/21,459.10 = 8,836.65/x
  3. Step 3: Cross multiply
    15,550.41x = 21,459.10 × 8,836.65
  4. Step 4: Simplify right side
    15,550.41x = 189,626,556.02
  5. Step 5: Solve for x
    x = 189,626,556.02/15,550.41
  6. Step 6: Final answer
    x = 12,194.31

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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.