Home / 6,989.27-9,646.56-4,007.10

Finding the Fourth Proportional to 6,989.27, 9,646.56 and 4,007.10

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Solution

The fourth proportional to 6,989.27, 9,646.56 and 4,007.10 is: 5,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.27 : 9,646.56 = 4,007.10 : x
  2. Step 2: Convert to fraction form
    6,989.27/9,646.56 = 4,007.10/x
  3. Step 3: Cross multiply
    6,989.27x = 9,646.56 × 4,007.10
  4. Step 4: Simplify right side
    6,989.27x = 38,654,730.58
  5. Step 5: Solve for x
    x = 38,654,730.58/6,989.27
  6. Step 6: Final answer
    x = 5,530.58

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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.