Home / 7,746.60-11,619.90-2,816.40

Finding the Fourth Proportional to 7,746.60, 11,619.90 and 2,816.40

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Solution

The fourth proportional to 7,746.60, 11,619.90 and 2,816.40 is: 4,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.60 : 11,619.90 = 2,816.40 : x
  2. Step 2: Convert to fraction form
    7,746.60/11,619.90 = 2,816.40/x
  3. Step 3: Cross multiply
    7,746.60x = 11,619.90 × 2,816.40
  4. Step 4: Simplify right side
    7,746.60x = 32,726,286.36
  5. Step 5: Solve for x
    x = 32,726,286.36/7,746.60
  6. Step 6: Final answer
    x = 4,224.60

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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.