Home / 15,556.29-21,467.21-8,842.65

Finding the Fourth Proportional to 15,556.29, 21,467.21 and 8,842.65

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Solution

The fourth proportional to 15,556.29, 21,467.21 and 8,842.65 is: 12,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.29 : 21,467.21 = 8,842.65 : x
  2. Step 2: Convert to fraction form
    15,556.29/21,467.21 = 8,842.65/x
  3. Step 3: Cross multiply
    15,556.29x = 21,467.21 × 8,842.65
  4. Step 4: Simplify right side
    15,556.29x = 189,827,024.51
  5. Step 5: Solve for x
    x = 189,827,024.51/15,556.29
  6. Step 6: Final answer
    x = 12,202.59

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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.