Home / 19,124.55-28,682.51-7,274.12

Finding the Fourth Proportional to 19,124.55, 28,682.51 and 7,274.12

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Solution

The fourth proportional to 19,124.55, 28,682.51 and 7,274.12 is: 10,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.55 : 28,682.51 = 7,274.12 : x
  2. Step 2: Convert to fraction form
    19,124.55/28,682.51 = 7,274.12/x
  3. Step 3: Cross multiply
    19,124.55x = 28,682.51 × 7,274.12
  4. Step 4: Simplify right side
    19,124.55x = 208,639,839.86
  5. Step 5: Solve for x
    x = 208,639,839.86/19,124.55
  6. Step 6: Final answer
    x = 10,909.53

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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.