Home / 15,448.60-21,326.97-9,789.22

Finding the Fourth Proportional to 15,448.60, 21,326.97 and 9,789.22

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Solution

The fourth proportional to 15,448.60, 21,326.97 and 9,789.22 is: 13,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.60 : 21,326.97 = 9,789.22 : x
  2. Step 2: Convert to fraction form
    15,448.60/21,326.97 = 9,789.22/x
  3. Step 3: Cross multiply
    15,448.60x = 21,326.97 × 9,789.22
  4. Step 4: Simplify right side
    15,448.60x = 208,774,401.26
  5. Step 5: Solve for x
    x = 208,774,401.26/15,448.60
  6. Step 6: Final answer
    x = 13,514.13

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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.