Home / 9,006.28-12,428.56-5,229.44

Finding the Fourth Proportional to 9,006.28, 12,428.56 and 5,229.44

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Solution

The fourth proportional to 9,006.28, 12,428.56 and 5,229.44 is: 7,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.28 : 12,428.56 = 5,229.44 : x
  2. Step 2: Convert to fraction form
    9,006.28/12,428.56 = 5,229.44/x
  3. Step 3: Cross multiply
    9,006.28x = 12,428.56 × 5,229.44
  4. Step 4: Simplify right side
    9,006.28x = 64,994,408.81
  5. Step 5: Solve for x
    x = 64,994,408.81/9,006.28
  6. Step 6: Final answer
    x = 7,216.57

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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.