Home / 7,901.01-11,845.28-5,428.49

Finding the Fourth Proportional to 7,901.01, 11,845.28 and 5,428.49

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Solution

The fourth proportional to 7,901.01, 11,845.28 and 5,428.49 is: 8,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.01 : 11,845.28 = 5,428.49 : x
  2. Step 2: Convert to fraction form
    7,901.01/11,845.28 = 5,428.49/x
  3. Step 3: Cross multiply
    7,901.01x = 11,845.28 × 5,428.49
  4. Step 4: Simplify right side
    7,901.01x = 64,301,897.66
  5. Step 5: Solve for x
    x = 64,301,897.66/7,901.01
  6. Step 6: Final answer
    x = 8,138.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.