Home / 7,840.06-10,810.87-6,243.55

Finding the Fourth Proportional to 7,840.06, 10,810.87 and 6,243.55

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Solution

The fourth proportional to 7,840.06, 10,810.87 and 6,243.55 is: 8,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.06 : 10,810.87 = 6,243.55 : x
  2. Step 2: Convert to fraction form
    7,840.06/10,810.87 = 6,243.55/x
  3. Step 3: Cross multiply
    7,840.06x = 10,810.87 × 6,243.55
  4. Step 4: Simplify right side
    7,840.06x = 67,498,164.75
  5. Step 5: Solve for x
    x = 67,498,164.75/7,840.06
  6. Step 6: Final answer
    x = 8,609.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.