Home / 6,210.12-9,306.90-5,428.20

Finding the Fourth Proportional to 6,210.12, 9,306.90 and 5,428.20

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Solution

The fourth proportional to 6,210.12, 9,306.90 and 5,428.20 is: 8,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,210.12 : 9,306.90 = 5,428.20 : x
  2. Step 2: Convert to fraction form
    6,210.12/9,306.90 = 5,428.20/x
  3. Step 3: Cross multiply
    6,210.12x = 9,306.90 × 5,428.20
  4. Step 4: Simplify right side
    6,210.12x = 50,519,714.58
  5. Step 5: Solve for x
    x = 50,519,714.58/6,210.12
  6. Step 6: Final answer
    x = 8,135.06

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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.