Home / 7,321.80-10,108.11-5,056.50

Finding the Fourth Proportional to 7,321.80, 10,108.11 and 5,056.50

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Solution

The fourth proportional to 7,321.80, 10,108.11 and 5,056.50 is: 6,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.80 : 10,108.11 = 5,056.50 : x
  2. Step 2: Convert to fraction form
    7,321.80/10,108.11 = 5,056.50/x
  3. Step 3: Cross multiply
    7,321.80x = 10,108.11 × 5,056.50
  4. Step 4: Simplify right side
    7,321.80x = 51,111,658.22
  5. Step 5: Solve for x
    x = 51,111,658.22/7,321.80
  6. Step 6: Final answer
    x = 6,980.75

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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.