Home / 8,719.07-12,039.10-5,363.44

Finding the Fourth Proportional to 8,719.07, 12,039.10 and 5,363.44

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Solution

The fourth proportional to 8,719.07, 12,039.10 and 5,363.44 is: 7,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.07 : 12,039.10 = 5,363.44 : x
  2. Step 2: Convert to fraction form
    8,719.07/12,039.10 = 5,363.44/x
  3. Step 3: Cross multiply
    8,719.07x = 12,039.10 × 5,363.44
  4. Step 4: Simplify right side
    8,719.07x = 64,570,990.50
  5. Step 5: Solve for x
    x = 64,570,990.50/8,719.07
  6. Step 6: Final answer
    x = 7,405.72

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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.