Home / 6,999.18-9,658.53-3,855.30

Finding the Fourth Proportional to 6,999.18, 9,658.53 and 3,855.30

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Solution

The fourth proportional to 6,999.18, 9,658.53 and 3,855.30 is: 5,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.18 : 9,658.53 = 3,855.30 : x
  2. Step 2: Convert to fraction form
    6,999.18/9,658.53 = 3,855.30/x
  3. Step 3: Cross multiply
    6,999.18x = 9,658.53 × 3,855.30
  4. Step 4: Simplify right side
    6,999.18x = 37,236,530.71
  5. Step 5: Solve for x
    x = 37,236,530.71/6,999.18
  6. Step 6: Final answer
    x = 5,320.13

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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.