Home / 7,011.81-9,676.40-3,868.07

Finding the Fourth Proportional to 7,011.81, 9,676.40 and 3,868.07

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Solution

The fourth proportional to 7,011.81, 9,676.40 and 3,868.07 is: 5,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.81 : 9,676.40 = 3,868.07 : x
  2. Step 2: Convert to fraction form
    7,011.81/9,676.40 = 3,868.07/x
  3. Step 3: Cross multiply
    7,011.81x = 9,676.40 × 3,868.07
  4. Step 4: Simplify right side
    7,011.81x = 37,428,924.83
  5. Step 5: Solve for x
    x = 37,428,924.83/7,011.81
  6. Step 6: Final answer
    x = 5,337.98

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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.