Home / 15,511.22-21,394.02-9,841.08

Finding the Fourth Proportional to 15,511.22, 21,394.02 and 9,841.08

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Solution

The fourth proportional to 15,511.22, 21,394.02 and 9,841.08 is: 13,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511.22 : 21,394.02 = 9,841.08 : x
  2. Step 2: Convert to fraction form
    15,511.22/21,394.02 = 9,841.08/x
  3. Step 3: Cross multiply
    15,511.22x = 21,394.02 × 9,841.08
  4. Step 4: Simplify right side
    15,511.22x = 210,540,262.34
  5. Step 5: Solve for x
    x = 210,540,262.34/15,511.22
  6. Step 6: Final answer
    x = 13,573.42

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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.