Home / 8,719.04-12,029.10-5,736.08

Finding the Fourth Proportional to 8,719.04, 12,029.10 and 5,736.08

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Solution

The fourth proportional to 8,719.04, 12,029.10 and 5,736.08 is: 7,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.04 : 12,029.10 = 5,736.08 : x
  2. Step 2: Convert to fraction form
    8,719.04/12,029.10 = 5,736.08/x
  3. Step 3: Cross multiply
    8,719.04x = 12,029.10 × 5,736.08
  4. Step 4: Simplify right side
    8,719.04x = 68,999,879.93
  5. Step 5: Solve for x
    x = 68,999,879.93/8,719.04
  6. Step 6: Final answer
    x = 7,913.70

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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.