Home / 15,985.59-22,059.30-8,910.64

Finding the Fourth Proportional to 15,985.59, 22,059.30 and 8,910.64

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Solution

The fourth proportional to 15,985.59, 22,059.30 and 8,910.64 is: 12,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.59 : 22,059.30 = 8,910.64 : x
  2. Step 2: Convert to fraction form
    15,985.59/22,059.30 = 8,910.64/x
  3. Step 3: Cross multiply
    15,985.59x = 22,059.30 × 8,910.64
  4. Step 4: Simplify right side
    15,985.59x = 196,562,480.95
  5. Step 5: Solve for x
    x = 196,562,480.95/15,985.59
  6. Step 6: Final answer
    x = 12,296.23

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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.