Home / 14,717.16-20,308.86-8,429.94

Finding the Fourth Proportional to 14,717.16, 20,308.86 and 8,429.94

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Solution

The fourth proportional to 14,717.16, 20,308.86 and 8,429.94 is: 11,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.16 : 20,308.86 = 8,429.94 : x
  2. Step 2: Convert to fraction form
    14,717.16/20,308.86 = 8,429.94/x
  3. Step 3: Cross multiply
    14,717.16x = 20,308.86 × 8,429.94
  4. Step 4: Simplify right side
    14,717.16x = 171,202,471.27
  5. Step 5: Solve for x
    x = 171,202,471.27/14,717.16
  6. Step 6: Final answer
    x = 11,632.85

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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.