Home / 6,617.40-9,911.70-4,284.60

Finding the Fourth Proportional to 6,617.40, 9,911.70 and 4,284.60

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Solution

The fourth proportional to 6,617.40, 9,911.70 and 4,284.60 is: 6,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.40 : 9,911.70 = 4,284.60 : x
  2. Step 2: Convert to fraction form
    6,617.40/9,911.70 = 4,284.60/x
  3. Step 3: Cross multiply
    6,617.40x = 9,911.70 × 4,284.60
  4. Step 4: Simplify right side
    6,617.40x = 42,467,669.82
  5. Step 5: Solve for x
    x = 42,467,669.82/6,617.40
  6. Step 6: Final answer
    x = 6,417.58

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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.