Home / 15,122.33-22,688.10-7,731.98

Finding the Fourth Proportional to 15,122.33, 22,688.10 and 7,731.98

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Solution

The fourth proportional to 15,122.33, 22,688.10 and 7,731.98 is: 11,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.33 : 22,688.10 = 7,731.98 : x
  2. Step 2: Convert to fraction form
    15,122.33/22,688.10 = 7,731.98/x
  3. Step 3: Cross multiply
    15,122.33x = 22,688.10 × 7,731.98
  4. Step 4: Simplify right side
    15,122.33x = 175,423,907.08
  5. Step 5: Solve for x
    x = 175,423,907.08/15,122.33
  6. Step 6: Final answer
    x = 11,600.32

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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.