Home / 11,545.20-15,928.11-7,568.51

Finding the Fourth Proportional to 11,545.20, 15,928.11 and 7,568.51

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Solution

The fourth proportional to 11,545.20, 15,928.11 and 7,568.51 is: 10,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.20 : 15,928.11 = 7,568.51 : x
  2. Step 2: Convert to fraction form
    11,545.20/15,928.11 = 7,568.51/x
  3. Step 3: Cross multiply
    11,545.20x = 15,928.11 × 7,568.51
  4. Step 4: Simplify right side
    11,545.20x = 120,551,980.18
  5. Step 5: Solve for x
    x = 120,551,980.18/11,545.20
  6. Step 6: Final answer
    x = 10,441.74

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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.