Home / 15,677.22-21,634.56-8,603.46

Finding the Fourth Proportional to 15,677.22, 21,634.56 and 8,603.46

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Solution

The fourth proportional to 15,677.22, 21,634.56 and 8,603.46 is: 11,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.22 : 21,634.56 = 8,603.46 : x
  2. Step 2: Convert to fraction form
    15,677.22/21,634.56 = 8,603.46/x
  3. Step 3: Cross multiply
    15,677.22x = 21,634.56 × 8,603.46
  4. Step 4: Simplify right side
    15,677.22x = 186,132,071.58
  5. Step 5: Solve for x
    x = 186,132,071.58/15,677.22
  6. Step 6: Final answer
    x = 11,872.77

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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.