Home / 11,265.60-16,898.40-10,315.20

Finding the Fourth Proportional to 11,265.60, 16,898.40 and 10,315.20

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Solution

The fourth proportional to 11,265.60, 16,898.40 and 10,315.20 is: 15,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.60 : 16,898.40 = 10,315.20 : x
  2. Step 2: Convert to fraction form
    11,265.60/16,898.40 = 10,315.20/x
  3. Step 3: Cross multiply
    11,265.60x = 16,898.40 × 10,315.20
  4. Step 4: Simplify right side
    11,265.60x = 174,310,375.68
  5. Step 5: Solve for x
    x = 174,310,375.68/11,265.60
  6. Step 6: Final answer
    x = 15,472.80

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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.