Home / 15,006.31-22,510.56-5,145.51

Finding the Fourth Proportional to 15,006.31, 22,510.56 and 5,145.51

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Solution

The fourth proportional to 15,006.31, 22,510.56 and 5,145.51 is: 7,718.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.31 : 22,510.56 = 5,145.51 : x
  2. Step 2: Convert to fraction form
    15,006.31/22,510.56 = 5,145.51/x
  3. Step 3: Cross multiply
    15,006.31x = 22,510.56 × 5,145.51
  4. Step 4: Simplify right side
    15,006.31x = 115,828,311.59
  5. Step 5: Solve for x
    x = 115,828,311.59/15,006.31
  6. Step 6: Final answer
    x = 7,718.64

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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.