Home / 13,223.27-18,246.95-7,556.90

Finding the Fourth Proportional to 13,223.27, 18,246.95 and 7,556.90

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Solution

The fourth proportional to 13,223.27, 18,246.95 and 7,556.90 is: 10,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.27 : 18,246.95 = 7,556.90 : x
  2. Step 2: Convert to fraction form
    13,223.27/18,246.95 = 7,556.90/x
  3. Step 3: Cross multiply
    13,223.27x = 18,246.95 × 7,556.90
  4. Step 4: Simplify right side
    13,223.27x = 137,890,247.44
  5. Step 5: Solve for x
    x = 137,890,247.44/13,223.27
  6. Step 6: Final answer
    x = 10,427.85

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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.