Home / 7,612.90-11,390.63-4,494.60

Finding the Fourth Proportional to 7,612.90, 11,390.63 and 4,494.60

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Solution

The fourth proportional to 7,612.90, 11,390.63 and 4,494.60 is: 6,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.90 : 11,390.63 = 4,494.60 : x
  2. Step 2: Convert to fraction form
    7,612.90/11,390.63 = 4,494.60/x
  3. Step 3: Cross multiply
    7,612.90x = 11,390.63 × 4,494.60
  4. Step 4: Simplify right side
    7,612.90x = 51,196,325.60
  5. Step 5: Solve for x
    x = 51,196,325.60/7,612.90
  6. Step 6: Final answer
    x = 6,724.94

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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.