Home / 8,719.48-12,029.58-5,359.60

Finding the Fourth Proportional to 8,719.48, 12,029.58 and 5,359.60

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Solution

The fourth proportional to 8,719.48, 12,029.58 and 5,359.60 is: 7,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.48 : 12,029.58 = 5,359.60 : x
  2. Step 2: Convert to fraction form
    8,719.48/12,029.58 = 5,359.60/x
  3. Step 3: Cross multiply
    8,719.48x = 12,029.58 × 5,359.60
  4. Step 4: Simplify right side
    8,719.48x = 64,473,736.97
  5. Step 5: Solve for x
    x = 64,473,736.97/8,719.48
  6. Step 6: Final answer
    x = 7,394.22

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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.