Home / 7,347.11-10,145.93-5,115.09

Finding the Fourth Proportional to 7,347.11, 10,145.93 and 5,115.09

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Solution

The fourth proportional to 7,347.11, 10,145.93 and 5,115.09 is: 7,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.11 : 10,145.93 = 5,115.09 : x
  2. Step 2: Convert to fraction form
    7,347.11/10,145.93 = 5,115.09/x
  3. Step 3: Cross multiply
    7,347.11x = 10,145.93 × 5,115.09
  4. Step 4: Simplify right side
    7,347.11x = 51,897,372.18
  5. Step 5: Solve for x
    x = 51,897,372.18/7,347.11
  6. Step 6: Final answer
    x = 7,063.64

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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.