Home / 13,226.29-19,818.88-7,665.84

Finding the Fourth Proportional to 13,226.29, 19,818.88 and 7,665.84

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Solution

The fourth proportional to 13,226.29, 19,818.88 and 7,665.84 is: 11,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.29 : 19,818.88 = 7,665.84 : x
  2. Step 2: Convert to fraction form
    13,226.29/19,818.88 = 7,665.84/x
  3. Step 3: Cross multiply
    13,226.29x = 19,818.88 × 7,665.84
  4. Step 4: Simplify right side
    13,226.29x = 151,928,343.89
  5. Step 5: Solve for x
    x = 151,928,343.89/13,226.29
  6. Step 6: Final answer
    x = 11,486.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.