Home / 7,869.56-11,803.88-3,485.53

Finding the Fourth Proportional to 7,869.56, 11,803.88 and 3,485.53

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Solution

The fourth proportional to 7,869.56, 11,803.88 and 3,485.53 is: 5,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.56 : 11,803.88 = 3,485.53 : x
  2. Step 2: Convert to fraction form
    7,869.56/11,803.88 = 3,485.53/x
  3. Step 3: Cross multiply
    7,869.56x = 11,803.88 × 3,485.53
  4. Step 4: Simplify right side
    7,869.56x = 41,142,781.72
  5. Step 5: Solve for x
    x = 41,142,781.72/7,869.56
  6. Step 6: Final answer
    x = 5,228.10

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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.