Home / 11,367.05-15,679.20-7,339.01

Finding the Fourth Proportional to 11,367.05, 15,679.20 and 7,339.01

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Solution

The fourth proportional to 11,367.05, 15,679.20 and 7,339.01 is: 10,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.05 : 15,679.20 = 7,339.01 : x
  2. Step 2: Convert to fraction form
    11,367.05/15,679.20 = 7,339.01/x
  3. Step 3: Cross multiply
    11,367.05x = 15,679.20 × 7,339.01
  4. Step 4: Simplify right side
    11,367.05x = 115,069,805.59
  5. Step 5: Solve for x
    x = 115,069,805.59/11,367.05
  6. Step 6: Final answer
    x = 10,123.10

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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.