Home / 15,812.79-23,723.29-4,719.47

Finding the Fourth Proportional to 15,812.79, 23,723.29 and 4,719.47

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Solution

The fourth proportional to 15,812.79, 23,723.29 and 4,719.47 is: 7,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.79 : 23,723.29 = 4,719.47 : x
  2. Step 2: Convert to fraction form
    15,812.79/23,723.29 = 4,719.47/x
  3. Step 3: Cross multiply
    15,812.79x = 23,723.29 × 4,719.47
  4. Step 4: Simplify right side
    15,812.79x = 111,961,391.17
  5. Step 5: Solve for x
    x = 111,961,391.17/15,812.79
  6. Step 6: Final answer
    x = 7,080.43

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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.