Home / 6,815.60-9,405.62-4,127.01

Finding the Fourth Proportional to 6,815.60, 9,405.62 and 4,127.01

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Solution

The fourth proportional to 6,815.60, 9,405.62 and 4,127.01 is: 5,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.60 : 9,405.62 = 4,127.01 : x
  2. Step 2: Convert to fraction form
    6,815.60/9,405.62 = 4,127.01/x
  3. Step 3: Cross multiply
    6,815.60x = 9,405.62 × 4,127.01
  4. Step 4: Simplify right side
    6,815.60x = 38,817,087.80
  5. Step 5: Solve for x
    x = 38,817,087.80/6,815.60
  6. Step 6: Final answer
    x = 5,695.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.