Home / 7,080.32-9,815.36-6,705.60

Finding the Fourth Proportional to 7,080.32, 9,815.36 and 6,705.60

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Solution

The fourth proportional to 7,080.32, 9,815.36 and 6,705.60 is: 9,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.32 : 9,815.36 = 6,705.60 : x
  2. Step 2: Convert to fraction form
    7,080.32/9,815.36 = 6,705.60/x
  3. Step 3: Cross multiply
    7,080.32x = 9,815.36 × 6,705.60
  4. Step 4: Simplify right side
    7,080.32x = 65,817,878.02
  5. Step 5: Solve for x
    x = 65,817,878.02/7,080.32
  6. Step 6: Final answer
    x = 9,295.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.