Home / 13,463.76-18,581.16-7,876.56

Finding the Fourth Proportional to 13,463.76, 18,581.16 and 7,876.56

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Solution

The fourth proportional to 13,463.76, 18,581.16 and 7,876.56 is: 10,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,463.76 : 18,581.16 = 7,876.56 : x
  2. Step 2: Convert to fraction form
    13,463.76/18,581.16 = 7,876.56/x
  3. Step 3: Cross multiply
    13,463.76x = 18,581.16 × 7,876.56
  4. Step 4: Simplify right side
    13,463.76x = 146,355,621.61
  5. Step 5: Solve for x
    x = 146,355,621.61/13,463.76
  6. Step 6: Final answer
    x = 10,870.34

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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.