Home / 15,669.06-21,623.31-8,595.50

Finding the Fourth Proportional to 15,669.06, 21,623.31 and 8,595.50

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Solution

The fourth proportional to 15,669.06, 21,623.31 and 8,595.50 is: 11,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.06 : 21,623.31 = 8,595.50 : x
  2. Step 2: Convert to fraction form
    15,669.06/21,623.31 = 8,595.50/x
  3. Step 3: Cross multiply
    15,669.06x = 21,623.31 × 8,595.50
  4. Step 4: Simplify right side
    15,669.06x = 185,863,161.11
  5. Step 5: Solve for x
    x = 185,863,161.11/15,669.06
  6. Step 6: Final answer
    x = 11,861.79

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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.