Home / 10,839.40-16,259.10-3,911.08

Finding the Fourth Proportional to 10,839.40, 16,259.10 and 3,911.08

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Solution

The fourth proportional to 10,839.40, 16,259.10 and 3,911.08 is: 5,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.40 : 16,259.10 = 3,911.08 : x
  2. Step 2: Convert to fraction form
    10,839.40/16,259.10 = 3,911.08/x
  3. Step 3: Cross multiply
    10,839.40x = 16,259.10 × 3,911.08
  4. Step 4: Simplify right side
    10,839.40x = 63,590,640.83
  5. Step 5: Solve for x
    x = 63,590,640.83/10,839.40
  6. Step 6: Final answer
    x = 5,866.62

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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.