Home / 8,020.12-12,030.32-2,097.20

Finding the Fourth Proportional to 8,020.12, 12,030.32 and 2,097.20

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Solution

The fourth proportional to 8,020.12, 12,030.32 and 2,097.20 is: 3,145.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.12 : 12,030.32 = 2,097.20 : x
  2. Step 2: Convert to fraction form
    8,020.12/12,030.32 = 2,097.20/x
  3. Step 3: Cross multiply
    8,020.12x = 12,030.32 × 2,097.20
  4. Step 4: Simplify right side
    8,020.12x = 25,229,987.10
  5. Step 5: Solve for x
    x = 25,229,987.10/8,020.12
  6. Step 6: Final answer
    x = 3,145.84

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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.