Home / 15,676.08-21,633.12-8,603.28

Finding the Fourth Proportional to 15,676.08, 21,633.12 and 8,603.28

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Solution

The fourth proportional to 15,676.08, 21,633.12 and 8,603.28 is: 11,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.08 : 21,633.12 = 8,603.28 : x
  2. Step 2: Convert to fraction form
    15,676.08/21,633.12 = 8,603.28/x
  3. Step 3: Cross multiply
    15,676.08x = 21,633.12 × 8,603.28
  4. Step 4: Simplify right side
    15,676.08x = 186,115,788.63
  5. Step 5: Solve for x
    x = 186,115,788.63/15,676.08
  6. Step 6: Final answer
    x = 11,872.60

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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.