Home / 8,492.12-12,721.60-5,561.54

Finding the Fourth Proportional to 8,492.12, 12,721.60 and 5,561.54

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Solution

The fourth proportional to 8,492.12, 12,721.60 and 5,561.54 is: 8,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.12 : 12,721.60 = 5,561.54 : x
  2. Step 2: Convert to fraction form
    8,492.12/12,721.60 = 5,561.54/x
  3. Step 3: Cross multiply
    8,492.12x = 12,721.60 × 5,561.54
  4. Step 4: Simplify right side
    8,492.12x = 70,751,609.75
  5. Step 5: Solve for x
    x = 70,751,609.75/8,492.12
  6. Step 6: Final answer
    x = 8,331.45

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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.