Home / 6,345.09-9,518.45-2,185.74

Finding the Fourth Proportional to 6,345.09, 9,518.45 and 2,185.74

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Solution

The fourth proportional to 6,345.09, 9,518.45 and 2,185.74 is: 3,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.09 : 9,518.45 = 2,185.74 : x
  2. Step 2: Convert to fraction form
    6,345.09/9,518.45 = 2,185.74/x
  3. Step 3: Cross multiply
    6,345.09x = 9,518.45 × 2,185.74
  4. Step 4: Simplify right side
    6,345.09x = 20,804,856.90
  5. Step 5: Solve for x
    x = 20,804,856.90/6,345.09
  6. Step 6: Final answer
    x = 3,278.89

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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.