Home / 15,311.05-21,127.61-8,597.41

Finding the Fourth Proportional to 15,311.05, 21,127.61 and 8,597.41

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Solution

The fourth proportional to 15,311.05, 21,127.61 and 8,597.41 is: 11,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.05 : 21,127.61 = 8,597.41 : x
  2. Step 2: Convert to fraction form
    15,311.05/21,127.61 = 8,597.41/x
  3. Step 3: Cross multiply
    15,311.05x = 21,127.61 × 8,597.41
  4. Step 4: Simplify right side
    15,311.05x = 181,642,619.85
  5. Step 5: Solve for x
    x = 181,642,619.85/15,311.05
  6. Step 6: Final answer
    x = 11,863.50

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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.