Home / 13,064.90-18,029.30-7,399.54

Finding the Fourth Proportional to 13,064.90, 18,029.30 and 7,399.54

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Solution

The fourth proportional to 13,064.90, 18,029.30 and 7,399.54 is: 10,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.90 : 18,029.30 = 7,399.54 : x
  2. Step 2: Convert to fraction form
    13,064.90/18,029.30 = 7,399.54/x
  3. Step 3: Cross multiply
    13,064.90x = 18,029.30 × 7,399.54
  4. Step 4: Simplify right side
    13,064.90x = 133,408,526.52
  5. Step 5: Solve for x
    x = 133,408,526.52/13,064.90
  6. Step 6: Final answer
    x = 10,211.22

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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.