Home / 15,607.54-21,536.26-8,891.88

Finding the Fourth Proportional to 15,607.54, 21,536.26 and 8,891.88

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Solution

The fourth proportional to 15,607.54, 21,536.26 and 8,891.88 is: 12,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.54 : 21,536.26 = 8,891.88 : x
  2. Step 2: Convert to fraction form
    15,607.54/21,536.26 = 8,891.88/x
  3. Step 3: Cross multiply
    15,607.54x = 21,536.26 × 8,891.88
  4. Step 4: Simplify right side
    15,607.54x = 191,497,839.57
  5. Step 5: Solve for x
    x = 191,497,839.57/15,607.54
  6. Step 6: Final answer
    x = 12,269.57

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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.