Home / 19,303.20-28,954.80-8,207.10

Finding the Fourth Proportional to 19,303.20, 28,954.80 and 8,207.10

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Solution

The fourth proportional to 19,303.20, 28,954.80 and 8,207.10 is: 12,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.20 : 28,954.80 = 8,207.10 : x
  2. Step 2: Convert to fraction form
    19,303.20/28,954.80 = 8,207.10/x
  3. Step 3: Cross multiply
    19,303.20x = 28,954.80 × 8,207.10
  4. Step 4: Simplify right side
    19,303.20x = 237,634,939.08
  5. Step 5: Solve for x
    x = 237,634,939.08/19,303.20
  6. Step 6: Final answer
    x = 12,310.65

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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.