Home / 9,109.04-12,579.60-5,967.20

Finding the Fourth Proportional to 9,109.04, 12,579.60 and 5,967.20

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Solution

The fourth proportional to 9,109.04, 12,579.60 and 5,967.20 is: 8,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.04 : 12,579.60 = 5,967.20 : x
  2. Step 2: Convert to fraction form
    9,109.04/12,579.60 = 5,967.20/x
  3. Step 3: Cross multiply
    9,109.04x = 12,579.60 × 5,967.20
  4. Step 4: Simplify right side
    9,109.04x = 75,064,989.12
  5. Step 5: Solve for x
    x = 75,064,989.12/9,109.04
  6. Step 6: Final answer
    x = 8,240.71

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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.