Home / 19,017.12-28,527.12-5,165.92

Finding the Fourth Proportional to 19,017.12, 28,527.12 and 5,165.92

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Solution

The fourth proportional to 19,017.12, 28,527.12 and 5,165.92 is: 7,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.12 : 28,527.12 = 5,165.92 : x
  2. Step 2: Convert to fraction form
    19,017.12/28,527.12 = 5,165.92/x
  3. Step 3: Cross multiply
    19,017.12x = 28,527.12 × 5,165.92
  4. Step 4: Simplify right side
    19,017.12x = 147,368,819.75
  5. Step 5: Solve for x
    x = 147,368,819.75/19,017.12
  6. Step 6: Final answer
    x = 7,749.27

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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.