Home / 6,511.40-9,767.10-5,666.60

Finding the Fourth Proportional to 6,511.40, 9,767.10 and 5,666.60

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Solution

The fourth proportional to 6,511.40, 9,767.10 and 5,666.60 is: 8,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.40 : 9,767.10 = 5,666.60 : x
  2. Step 2: Convert to fraction form
    6,511.40/9,767.10 = 5,666.60/x
  3. Step 3: Cross multiply
    6,511.40x = 9,767.10 × 5,666.60
  4. Step 4: Simplify right side
    6,511.40x = 55,346,248.86
  5. Step 5: Solve for x
    x = 55,346,248.86/6,511.40
  6. Step 6: Final answer
    x = 8,499.90

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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.