Home / 15,556.40-21,468.29-8,842.31

Finding the Fourth Proportional to 15,556.40, 21,468.29 and 8,842.31

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Solution

The fourth proportional to 15,556.40, 21,468.29 and 8,842.31 is: 12,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.40 : 21,468.29 = 8,842.31 : x
  2. Step 2: Convert to fraction form
    15,556.40/21,468.29 = 8,842.31/x
  3. Step 3: Cross multiply
    15,556.40x = 21,468.29 × 8,842.31
  4. Step 4: Simplify right side
    15,556.40x = 189,829,275.35
  5. Step 5: Solve for x
    x = 189,829,275.35/15,556.40
  6. Step 6: Final answer
    x = 12,202.65

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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.