Home / 15,515.13-23,266.52-8,125.80

Finding the Fourth Proportional to 15,515.13, 23,266.52 and 8,125.80

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Solution

The fourth proportional to 15,515.13, 23,266.52 and 8,125.80 is: 12,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.13 : 23,266.52 = 8,125.80 : x
  2. Step 2: Convert to fraction form
    15,515.13/23,266.52 = 8,125.80/x
  3. Step 3: Cross multiply
    15,515.13x = 23,266.52 × 8,125.80
  4. Step 4: Simplify right side
    15,515.13x = 189,059,047.59
  5. Step 5: Solve for x
    x = 189,059,047.59/15,515.13
  6. Step 6: Final answer
    x = 12,185.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.