Home / 10,998.12-16,484.78-5,455.44

Finding the Fourth Proportional to 10,998.12, 16,484.78 and 5,455.44

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Solution

The fourth proportional to 10,998.12, 16,484.78 and 5,455.44 is: 8,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.12 : 16,484.78 = 5,455.44 : x
  2. Step 2: Convert to fraction form
    10,998.12/16,484.78 = 5,455.44/x
  3. Step 3: Cross multiply
    10,998.12x = 16,484.78 × 5,455.44
  4. Step 4: Simplify right side
    10,998.12x = 89,931,700.93
  5. Step 5: Solve for x
    x = 89,931,700.93/10,998.12
  6. Step 6: Final answer
    x = 8,177.01

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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.