Home / 19,302.20-28,953.30-8,206.10

Finding the Fourth Proportional to 19,302.20, 28,953.30 and 8,206.10

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Solution

The fourth proportional to 19,302.20, 28,953.30 and 8,206.10 is: 12,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.20 : 28,953.30 = 8,206.10 : x
  2. Step 2: Convert to fraction form
    19,302.20/28,953.30 = 8,206.10/x
  3. Step 3: Cross multiply
    19,302.20x = 28,953.30 × 8,206.10
  4. Step 4: Simplify right side
    19,302.20x = 237,593,675.13
  5. Step 5: Solve for x
    x = 237,593,675.13/19,302.20
  6. Step 6: Final answer
    x = 12,309.15

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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.