Home / 7,187.38-9,918.58-4,043.64

Finding the Fourth Proportional to 7,187.38, 9,918.58 and 4,043.64

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Solution

The fourth proportional to 7,187.38, 9,918.58 and 4,043.64 is: 5,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.38 : 9,918.58 = 4,043.64 : x
  2. Step 2: Convert to fraction form
    7,187.38/9,918.58 = 4,043.64/x
  3. Step 3: Cross multiply
    7,187.38x = 9,918.58 × 4,043.64
  4. Step 4: Simplify right side
    7,187.38x = 40,107,166.83
  5. Step 5: Solve for x
    x = 40,107,166.83/7,187.38
  6. Step 6: Final answer
    x = 5,580.22

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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.