Home / 15,536.77-21,440.88-8,822.54

Finding the Fourth Proportional to 15,536.77, 21,440.88 and 8,822.54

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Solution

The fourth proportional to 15,536.77, 21,440.88 and 8,822.54 is: 12,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.77 : 21,440.88 = 8,822.54 : x
  2. Step 2: Convert to fraction form
    15,536.77/21,440.88 = 8,822.54/x
  3. Step 3: Cross multiply
    15,536.77x = 21,440.88 × 8,822.54
  4. Step 4: Simplify right side
    15,536.77x = 189,162,914.23
  5. Step 5: Solve for x
    x = 189,162,914.23/15,536.77
  6. Step 6: Final answer
    x = 12,175.18

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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.