Home / 15,910.12-21,955.35-8,836.99

Finding the Fourth Proportional to 15,910.12, 21,955.35 and 8,836.99

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Solution

The fourth proportional to 15,910.12, 21,955.35 and 8,836.99 is: 12,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.12 : 21,955.35 = 8,836.99 : x
  2. Step 2: Convert to fraction form
    15,910.12/21,955.35 = 8,836.99/x
  3. Step 3: Cross multiply
    15,910.12x = 21,955.35 × 8,836.99
  4. Step 4: Simplify right side
    15,910.12x = 194,019,208.40
  5. Step 5: Solve for x
    x = 194,019,208.40/15,910.12
  6. Step 6: Final answer
    x = 12,194.70

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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.