Home / 6,155.40-9,218.70-4,686.60

Finding the Fourth Proportional to 6,155.40, 9,218.70 and 4,686.60

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Solution

The fourth proportional to 6,155.40, 9,218.70 and 4,686.60 is: 7,018.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.40 : 9,218.70 = 4,686.60 : x
  2. Step 2: Convert to fraction form
    6,155.40/9,218.70 = 4,686.60/x
  3. Step 3: Cross multiply
    6,155.40x = 9,218.70 × 4,686.60
  4. Step 4: Simplify right side
    6,155.40x = 43,204,359.42
  5. Step 5: Solve for x
    x = 43,204,359.42/6,155.40
  6. Step 6: Final answer
    x = 7,018.94

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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.