Home / 11,491.20-17,193.60-10,454.40

Finding the Fourth Proportional to 11,491.20, 17,193.60 and 10,454.40

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Solution

The fourth proportional to 11,491.20, 17,193.60 and 10,454.40 is: 15,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.20 : 17,193.60 = 10,454.40 : x
  2. Step 2: Convert to fraction form
    11,491.20/17,193.60 = 10,454.40/x
  3. Step 3: Cross multiply
    11,491.20x = 17,193.60 × 10,454.40
  4. Step 4: Simplify right side
    11,491.20x = 179,748,771.84
  5. Step 5: Solve for x
    x = 179,748,771.84/11,491.20
  6. Step 6: Final answer
    x = 15,642.30

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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.