Home / 15,676.84-21,634.59-8,603.32

Finding the Fourth Proportional to 15,676.84, 21,634.59 and 8,603.32

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Solution

The fourth proportional to 15,676.84, 21,634.59 and 8,603.32 is: 11,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.84 : 21,634.59 = 8,603.32 : x
  2. Step 2: Convert to fraction form
    15,676.84/21,634.59 = 8,603.32/x
  3. Step 3: Cross multiply
    15,676.84x = 21,634.59 × 8,603.32
  4. Step 4: Simplify right side
    15,676.84x = 186,129,300.84
  5. Step 5: Solve for x
    x = 186,129,300.84/15,676.84
  6. Step 6: Final answer
    x = 11,872.88

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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.