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Finding the Fourth Proportional to 13,597.56, 18,775.25 and 8,819.77

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Solution

The fourth proportional to 13,597.56, 18,775.25 and 8,819.77 is: 12,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.56 : 18,775.25 = 8,819.77 : x
  2. Step 2: Convert to fraction form
    13,597.56/18,775.25 = 8,819.77/x
  3. Step 3: Cross multiply
    13,597.56x = 18,775.25 × 8,819.77
  4. Step 4: Simplify right side
    13,597.56x = 165,593,386.69
  5. Step 5: Solve for x
    x = 165,593,386.69/13,597.56
  6. Step 6: Final answer
    x = 12,178.17

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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.