Home / 13,086.35-18,058.77-7,421.61

Finding the Fourth Proportional to 13,086.35, 18,058.77 and 7,421.61

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Solution

The fourth proportional to 13,086.35, 18,058.77 and 7,421.61 is: 10,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.35 : 18,058.77 = 7,421.61 : x
  2. Step 2: Convert to fraction form
    13,086.35/18,058.77 = 7,421.61/x
  3. Step 3: Cross multiply
    13,086.35x = 18,058.77 × 7,421.61
  4. Step 4: Simplify right side
    13,086.35x = 134,025,148.02
  5. Step 5: Solve for x
    x = 134,025,148.02/13,086.35
  6. Step 6: Final answer
    x = 10,241.60

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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.