Home / 15,288.32-22,913.28-5,419.52

Finding the Fourth Proportional to 15,288.32, 22,913.28 and 5,419.52

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Solution

The fourth proportional to 15,288.32, 22,913.28 and 5,419.52 is: 8,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.32 : 22,913.28 = 5,419.52 : x
  2. Step 2: Convert to fraction form
    15,288.32/22,913.28 = 5,419.52/x
  3. Step 3: Cross multiply
    15,288.32x = 22,913.28 × 5,419.52
  4. Step 4: Simplify right side
    15,288.32x = 124,178,979.23
  5. Step 5: Solve for x
    x = 124,178,979.23/15,288.32
  6. Step 6: Final answer
    x = 8,122.47

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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.