Home / 15,272.92-21,077.82-8,559.17

Finding the Fourth Proportional to 15,272.92, 21,077.82 and 8,559.17

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Solution

The fourth proportional to 15,272.92, 21,077.82 and 8,559.17 is: 11,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.92 : 21,077.82 = 8,559.17 : x
  2. Step 2: Convert to fraction form
    15,272.92/21,077.82 = 8,559.17/x
  3. Step 3: Cross multiply
    15,272.92x = 21,077.82 × 8,559.17
  4. Step 4: Simplify right side
    15,272.92x = 180,408,654.51
  5. Step 5: Solve for x
    x = 180,408,654.51/15,272.92
  6. Step 6: Final answer
    x = 11,812.32

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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.