Home / 15,676.48-21,633.84-8,603.44

Finding the Fourth Proportional to 15,676.48, 21,633.84 and 8,603.44

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Solution

The fourth proportional to 15,676.48, 21,633.84 and 8,603.44 is: 11,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.48 : 21,633.84 = 8,603.44 : x
  2. Step 2: Convert to fraction form
    15,676.48/21,633.84 = 8,603.44/x
  3. Step 3: Cross multiply
    15,676.48x = 21,633.84 × 8,603.44
  4. Step 4: Simplify right side
    15,676.48x = 186,125,444.41
  5. Step 5: Solve for x
    x = 186,125,444.41/15,676.48
  6. Step 6: Final answer
    x = 11,872.91

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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.