Home / 10,862.20-16,244.70-9,112.60

Finding the Fourth Proportional to 10,862.20, 16,244.70 and 9,112.60

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Solution

The fourth proportional to 10,862.20, 16,244.70 and 9,112.60 is: 13,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.20 : 16,244.70 = 9,112.60 : x
  2. Step 2: Convert to fraction form
    10,862.20/16,244.70 = 9,112.60/x
  3. Step 3: Cross multiply
    10,862.20x = 16,244.70 × 9,112.60
  4. Step 4: Simplify right side
    10,862.20x = 148,031,453.22
  5. Step 5: Solve for x
    x = 148,031,453.22/10,862.20
  6. Step 6: Final answer
    x = 13,628.13

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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.