Home / 11,347.05-15,658.79-6,311.25

Finding the Fourth Proportional to 11,347.05, 15,658.79 and 6,311.25

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Solution

The fourth proportional to 11,347.05, 15,658.79 and 6,311.25 is: 8,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.05 : 15,658.79 = 6,311.25 : x
  2. Step 2: Convert to fraction form
    11,347.05/15,658.79 = 6,311.25/x
  3. Step 3: Cross multiply
    11,347.05x = 15,658.79 × 6,311.25
  4. Step 4: Simplify right side
    11,347.05x = 98,826,506.83
  5. Step 5: Solve for x
    x = 98,826,506.83/11,347.05
  6. Step 6: Final answer
    x = 8,709.44

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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.