Home / 10,890.06-16,299.09-9,369.42

Finding the Fourth Proportional to 10,890.06, 16,299.09 and 9,369.42

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Solution

The fourth proportional to 10,890.06, 16,299.09 and 9,369.42 is: 14,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.06 : 16,299.09 = 9,369.42 : x
  2. Step 2: Convert to fraction form
    10,890.06/16,299.09 = 9,369.42/x
  3. Step 3: Cross multiply
    10,890.06x = 16,299.09 × 9,369.42
  4. Step 4: Simplify right side
    10,890.06x = 152,713,019.83
  5. Step 5: Solve for x
    x = 152,713,019.83/10,890.06
  6. Step 6: Final answer
    x = 14,023.16

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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.