Home / 19,277.14-28,915.68-5,426.14

Finding the Fourth Proportional to 19,277.14, 28,915.68 and 5,426.14

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Solution

The fourth proportional to 19,277.14, 28,915.68 and 5,426.14 is: 8,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.14 : 28,915.68 = 5,426.14 : x
  2. Step 2: Convert to fraction form
    19,277.14/28,915.68 = 5,426.14/x
  3. Step 3: Cross multiply
    19,277.14x = 28,915.68 × 5,426.14
  4. Step 4: Simplify right side
    19,277.14x = 156,900,527.88
  5. Step 5: Solve for x
    x = 156,900,527.88/19,277.14
  6. Step 6: Final answer
    x = 8,139.20

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1.5x scale

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.