Home / 10,867.71-14,998.71-6,621.27

Finding the Fourth Proportional to 10,867.71, 14,998.71 and 6,621.27

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Solution

The fourth proportional to 10,867.71, 14,998.71 and 6,621.27 is: 9,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.71 : 14,998.71 = 6,621.27 : x
  2. Step 2: Convert to fraction form
    10,867.71/14,998.71 = 6,621.27/x
  3. Step 3: Cross multiply
    10,867.71x = 14,998.71 × 6,621.27
  4. Step 4: Simplify right side
    10,867.71x = 99,310,508.56
  5. Step 5: Solve for x
    x = 99,310,508.56/10,867.71
  6. Step 6: Final answer
    x = 9,138.13

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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.