Home / 13,425.02-18,523.54-8,119.74

Finding the Fourth Proportional to 13,425.02, 18,523.54 and 8,119.74

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Solution

The fourth proportional to 13,425.02, 18,523.54 and 8,119.74 is: 11,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.02 : 18,523.54 = 8,119.74 : x
  2. Step 2: Convert to fraction form
    13,425.02/18,523.54 = 8,119.74/x
  3. Step 3: Cross multiply
    13,425.02x = 18,523.54 × 8,119.74
  4. Step 4: Simplify right side
    13,425.02x = 150,406,328.68
  5. Step 5: Solve for x
    x = 150,406,328.68/13,425.02
  6. Step 6: Final answer
    x = 11,203.43

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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.