Home / 6,378.60-9,567.74-1,998.12

Finding the Fourth Proportional to 6,378.60, 9,567.74 and 1,998.12

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Solution

The fourth proportional to 6,378.60, 9,567.74 and 1,998.12 is: 2,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.60 : 9,567.74 = 1,998.12 : x
  2. Step 2: Convert to fraction form
    6,378.60/9,567.74 = 1,998.12/x
  3. Step 3: Cross multiply
    6,378.60x = 9,567.74 × 1,998.12
  4. Step 4: Simplify right side
    6,378.60x = 19,117,492.65
  5. Step 5: Solve for x
    x = 19,117,492.65/6,378.60
  6. Step 6: Final answer
    x = 2,997.13

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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.