Home / 18,408.75-25,402.47-10,451.31

Finding the Fourth Proportional to 18,408.75, 25,402.47 and 10,451.31

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Solution

The fourth proportional to 18,408.75, 25,402.47 and 10,451.31 is: 14,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.75 : 25,402.47 = 10,451.31 : x
  2. Step 2: Convert to fraction form
    18,408.75/25,402.47 = 10,451.31/x
  3. Step 3: Cross multiply
    18,408.75x = 25,402.47 × 10,451.31
  4. Step 4: Simplify right side
    18,408.75x = 265,489,088.74
  5. Step 5: Solve for x
    x = 265,489,088.74/18,408.75
  6. Step 6: Final answer
    x = 14,421.90

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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.