Home / 7,855.67-10,840.55-4,318.86

Finding the Fourth Proportional to 7,855.67, 10,840.55 and 4,318.86

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Solution

The fourth proportional to 7,855.67, 10,840.55 and 4,318.86 is: 5,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.67 : 10,840.55 = 4,318.86 : x
  2. Step 2: Convert to fraction form
    7,855.67/10,840.55 = 4,318.86/x
  3. Step 3: Cross multiply
    7,855.67x = 10,840.55 × 4,318.86
  4. Step 4: Simplify right side
    7,855.67x = 46,818,828.57
  5. Step 5: Solve for x
    x = 46,818,828.57/7,855.67
  6. Step 6: Final answer
    x = 5,959.88

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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.