Home / 10,839.60-16,259.40-10,191.60

Finding the Fourth Proportional to 10,839.60, 16,259.40 and 10,191.60

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Solution

The fourth proportional to 10,839.60, 16,259.40 and 10,191.60 is: 15,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.60 : 16,259.40 = 10,191.60 : x
  2. Step 2: Convert to fraction form
    10,839.60/16,259.40 = 10,191.60/x
  3. Step 3: Cross multiply
    10,839.60x = 16,259.40 × 10,191.60
  4. Step 4: Simplify right side
    10,839.60x = 165,709,301.04
  5. Step 5: Solve for x
    x = 165,709,301.04/10,839.60
  6. Step 6: Final answer
    x = 15,287.40

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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.