Home / 10,354.21-15,518.35-8,154.25

Finding the Fourth Proportional to 10,354.21, 15,518.35 and 8,154.25

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Solution

The fourth proportional to 10,354.21, 15,518.35 and 8,154.25 is: 12,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.21 : 15,518.35 = 8,154.25 : x
  2. Step 2: Convert to fraction form
    10,354.21/15,518.35 = 8,154.25/x
  3. Step 3: Cross multiply
    10,354.21x = 15,518.35 × 8,154.25
  4. Step 4: Simplify right side
    10,354.21x = 126,540,505.49
  5. Step 5: Solve for x
    x = 126,540,505.49/10,354.21
  6. Step 6: Final answer
    x = 12,221.16

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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.