Home / 15,615.28-23,419.53-4,942.47

Finding the Fourth Proportional to 15,615.28, 23,419.53 and 4,942.47

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Solution

The fourth proportional to 15,615.28, 23,419.53 and 4,942.47 is: 7,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.28 : 23,419.53 = 4,942.47 : x
  2. Step 2: Convert to fraction form
    15,615.28/23,419.53 = 4,942.47/x
  3. Step 3: Cross multiply
    15,615.28x = 23,419.53 × 4,942.47
  4. Step 4: Simplify right side
    15,615.28x = 115,750,354.52
  5. Step 5: Solve for x
    x = 115,750,354.52/15,615.28
  6. Step 6: Final answer
    x = 7,412.63

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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.