Home / 11,315.57-16,951.28-7,408.13

Finding the Fourth Proportional to 11,315.57, 16,951.28 and 7,408.13

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Solution

The fourth proportional to 11,315.57, 16,951.28 and 7,408.13 is: 11,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.57 : 16,951.28 = 7,408.13 : x
  2. Step 2: Convert to fraction form
    11,315.57/16,951.28 = 7,408.13/x
  3. Step 3: Cross multiply
    11,315.57x = 16,951.28 × 7,408.13
  4. Step 4: Simplify right side
    11,315.57x = 125,577,164.11
  5. Step 5: Solve for x
    x = 125,577,164.11/11,315.57
  6. Step 6: Final answer
    x = 11,097.74

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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.