Home / 13,289.42-19,916.18-7,366.06

Finding the Fourth Proportional to 13,289.42, 19,916.18 and 7,366.06

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Solution

The fourth proportional to 13,289.42, 19,916.18 and 7,366.06 is: 11,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.42 : 19,916.18 = 7,366.06 : x
  2. Step 2: Convert to fraction form
    13,289.42/19,916.18 = 7,366.06/x
  3. Step 3: Cross multiply
    13,289.42x = 19,916.18 × 7,366.06
  4. Step 4: Simplify right side
    13,289.42x = 146,703,776.85
  5. Step 5: Solve for x
    x = 146,703,776.85/13,289.42
  6. Step 6: Final answer
    x = 11,039.14

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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.