Home / 15,011.28-22,511.52-5,148

Finding the Fourth Proportional to 15,011.28, 22,511.52 and 5,148

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Solution

The fourth proportional to 15,011.28, 22,511.52 and 5,148 is: 7,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.28 : 22,511.52 = 5,148 : x
  2. Step 2: Convert to fraction form
    15,011.28/22,511.52 = 5,148/x
  3. Step 3: Cross multiply
    15,011.28x = 22,511.52 × 5,148
  4. Step 4: Simplify right side
    15,011.28x = 115,889,304.96
  5. Step 5: Solve for x
    x = 115,889,304.96/15,011.28
  6. Step 6: Final answer
    x = 7,720.15

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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.