Home / 9,421.79-12,999.40-6,066.54

Finding the Fourth Proportional to 9,421.79, 12,999.40 and 6,066.54

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Solution

The fourth proportional to 9,421.79, 12,999.40 and 6,066.54 is: 8,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.79 : 12,999.40 = 6,066.54 : x
  2. Step 2: Convert to fraction form
    9,421.79/12,999.40 = 6,066.54/x
  3. Step 3: Cross multiply
    9,421.79x = 12,999.40 × 6,066.54
  4. Step 4: Simplify right side
    9,421.79x = 78,861,380.08
  5. Step 5: Solve for x
    x = 78,861,380.08/9,421.79
  6. Step 6: Final answer
    x = 8,370.11

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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.