Home / 7,807.38-10,761.06-5,918.35

Finding the Fourth Proportional to 7,807.38, 10,761.06 and 5,918.35

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Solution

The fourth proportional to 7,807.38, 10,761.06 and 5,918.35 is: 8,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.38 : 10,761.06 = 5,918.35 : x
  2. Step 2: Convert to fraction form
    7,807.38/10,761.06 = 5,918.35/x
  3. Step 3: Cross multiply
    7,807.38x = 10,761.06 × 5,918.35
  4. Step 4: Simplify right side
    7,807.38x = 63,687,719.45
  5. Step 5: Solve for x
    x = 63,687,719.45/7,807.38
  6. Step 6: Final answer
    x = 8,157.37

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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.