Home / 19,303.20-28,956.15-8,208.63

Finding the Fourth Proportional to 19,303.20, 28,956.15 and 8,208.63

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Solution

The fourth proportional to 19,303.20, 28,956.15 and 8,208.63 is: 12,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.20 : 28,956.15 = 8,208.63 : x
  2. Step 2: Convert to fraction form
    19,303.20/28,956.15 = 8,208.63/x
  3. Step 3: Cross multiply
    19,303.20x = 28,956.15 × 8,208.63
  4. Step 4: Simplify right side
    19,303.20x = 237,690,321.57
  5. Step 5: Solve for x
    x = 237,690,321.57/19,303.20
  6. Step 6: Final answer
    x = 12,313.52

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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.