Home / 15,669.12-21,623.44-8,595.44

Finding the Fourth Proportional to 15,669.12, 21,623.44 and 8,595.44

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Solution

The fourth proportional to 15,669.12, 21,623.44 and 8,595.44 is: 11,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.12 : 21,623.44 = 8,595.44 : x
  2. Step 2: Convert to fraction form
    15,669.12/21,623.44 = 8,595.44/x
  3. Step 3: Cross multiply
    15,669.12x = 21,623.44 × 8,595.44
  4. Step 4: Simplify right side
    15,669.12x = 185,862,981.11
  5. Step 5: Solve for x
    x = 185,862,981.11/15,669.12
  6. Step 6: Final answer
    x = 11,861.74

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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.