Home / 13,125.85-18,115.06-8,024.35

Finding the Fourth Proportional to 13,125.85, 18,115.06 and 8,024.35

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Solution

The fourth proportional to 13,125.85, 18,115.06 and 8,024.35 is: 11,074.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.85 : 18,115.06 = 8,024.35 : x
  2. Step 2: Convert to fraction form
    13,125.85/18,115.06 = 8,024.35/x
  3. Step 3: Cross multiply
    13,125.85x = 18,115.06 × 8,024.35
  4. Step 4: Simplify right side
    13,125.85x = 145,361,584.29
  5. Step 5: Solve for x
    x = 145,361,584.29/13,125.85
  6. Step 6: Final answer
    x = 11,074.45

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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.