Home / 11,307.40-16,961.10-5,151.40

Finding the Fourth Proportional to 11,307.40, 16,961.10 and 5,151.40

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Solution

The fourth proportional to 11,307.40, 16,961.10 and 5,151.40 is: 7,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.40 : 16,961.10 = 5,151.40 : x
  2. Step 2: Convert to fraction form
    11,307.40/16,961.10 = 5,151.40/x
  3. Step 3: Cross multiply
    11,307.40x = 16,961.10 × 5,151.40
  4. Step 4: Simplify right side
    11,307.40x = 87,373,410.54
  5. Step 5: Solve for x
    x = 87,373,410.54/11,307.40
  6. Step 6: Final answer
    x = 7,727.10

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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.