Home / 9,272.89-12,783.19-6,615.69

Finding the Fourth Proportional to 9,272.89, 12,783.19 and 6,615.69

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Solution

The fourth proportional to 9,272.89, 12,783.19 and 6,615.69 is: 9,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,272.89 : 12,783.19 = 6,615.69 : x
  2. Step 2: Convert to fraction form
    9,272.89/12,783.19 = 6,615.69/x
  3. Step 3: Cross multiply
    9,272.89x = 12,783.19 × 6,615.69
  4. Step 4: Simplify right side
    9,272.89x = 84,569,622.25
  5. Step 5: Solve for x
    x = 84,569,622.25/9,272.89
  6. Step 6: Final answer
    x = 9,120.09

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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.