Home / 15,122.28-22,688.02-7,731.93

Finding the Fourth Proportional to 15,122.28, 22,688.02 and 7,731.93

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Solution

The fourth proportional to 15,122.28, 22,688.02 and 7,731.93 is: 11,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.28 : 22,688.02 = 7,731.93 : x
  2. Step 2: Convert to fraction form
    15,122.28/22,688.02 = 7,731.93/x
  3. Step 3: Cross multiply
    15,122.28x = 22,688.02 × 7,731.93
  4. Step 4: Simplify right side
    15,122.28x = 175,422,088.37
  5. Step 5: Solve for x
    x = 175,422,088.37/15,122.28
  6. Step 6: Final answer
    x = 11,600.24

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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.