Home / 15,115.46-22,669.54-4,727.21

Finding the Fourth Proportional to 15,115.46, 22,669.54 and 4,727.21

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Solution

The fourth proportional to 15,115.46, 22,669.54 and 4,727.21 is: 7,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.46 : 22,669.54 = 4,727.21 : x
  2. Step 2: Convert to fraction form
    15,115.46/22,669.54 = 4,727.21/x
  3. Step 3: Cross multiply
    15,115.46x = 22,669.54 × 4,727.21
  4. Step 4: Simplify right side
    15,115.46x = 107,163,619.51
  5. Step 5: Solve for x
    x = 107,163,619.51/15,115.46
  6. Step 6: Final answer
    x = 7,089.67

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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.