Home / 15,254.22-21,048.39-8,540.13

Finding the Fourth Proportional to 15,254.22, 21,048.39 and 8,540.13

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Solution

The fourth proportional to 15,254.22, 21,048.39 and 8,540.13 is: 11,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.22 : 21,048.39 = 8,540.13 : x
  2. Step 2: Convert to fraction form
    15,254.22/21,048.39 = 8,540.13/x
  3. Step 3: Cross multiply
    15,254.22x = 21,048.39 × 8,540.13
  4. Step 4: Simplify right side
    15,254.22x = 179,756,065.82
  5. Step 5: Solve for x
    x = 179,756,065.82/15,254.22
  6. Step 6: Final answer
    x = 11,784.02

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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.