Home / 10,389.92-15,586.91-3,816.16

Finding the Fourth Proportional to 10,389.92, 15,586.91 and 3,816.16

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Solution

The fourth proportional to 10,389.92, 15,586.91 and 3,816.16 is: 5,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.92 : 15,586.91 = 3,816.16 : x
  2. Step 2: Convert to fraction form
    10,389.92/15,586.91 = 3,816.16/x
  3. Step 3: Cross multiply
    10,389.92x = 15,586.91 × 3,816.16
  4. Step 4: Simplify right side
    10,389.92x = 59,482,074.07
  5. Step 5: Solve for x
    x = 59,482,074.07/10,389.92
  6. Step 6: Final answer
    x = 5,724.98

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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.