Home / 15,145.11-22,718.57-4,756.86

Finding the Fourth Proportional to 15,145.11, 22,718.57 and 4,756.86

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Solution

The fourth proportional to 15,145.11, 22,718.57 and 4,756.86 is: 7,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.11 : 22,718.57 = 4,756.86 : x
  2. Step 2: Convert to fraction form
    15,145.11/22,718.57 = 4,756.86/x
  3. Step 3: Cross multiply
    15,145.11x = 22,718.57 × 4,756.86
  4. Step 4: Simplify right side
    15,145.11x = 108,068,919.51
  5. Step 5: Solve for x
    x = 108,068,919.51/15,145.11
  6. Step 6: Final answer
    x = 7,135.57

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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.