Home / 15,710.80-23,551.56-5,315.28

Finding the Fourth Proportional to 15,710.80, 23,551.56 and 5,315.28

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Solution

The fourth proportional to 15,710.80, 23,551.56 and 5,315.28 is: 7,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.80 : 23,551.56 = 5,315.28 : x
  2. Step 2: Convert to fraction form
    15,710.80/23,551.56 = 5,315.28/x
  3. Step 3: Cross multiply
    15,710.80x = 23,551.56 × 5,315.28
  4. Step 4: Simplify right side
    15,710.80x = 125,183,135.84
  5. Step 5: Solve for x
    x = 125,183,135.84/15,710.80
  6. Step 6: Final answer
    x = 7,967.97

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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.