Home / 14,286.36-19,717.14-8,621.40

Finding the Fourth Proportional to 14,286.36, 19,717.14 and 8,621.40

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Solution

The fourth proportional to 14,286.36, 19,717.14 and 8,621.40 is: 11,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.36 : 19,717.14 = 8,621.40 : x
  2. Step 2: Convert to fraction form
    14,286.36/19,717.14 = 8,621.40/x
  3. Step 3: Cross multiply
    14,286.36x = 19,717.14 × 8,621.40
  4. Step 4: Simplify right side
    14,286.36x = 169,989,350.80
  5. Step 5: Solve for x
    x = 169,989,350.80/14,286.36
  6. Step 6: Final answer
    x = 11,898.72

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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.