Home / 14,717.77-20,311.05-8,431.36

Finding the Fourth Proportional to 14,717.77, 20,311.05 and 8,431.36

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Solution

The fourth proportional to 14,717.77, 20,311.05 and 8,431.36 is: 11,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.77 : 20,311.05 = 8,431.36 : x
  2. Step 2: Convert to fraction form
    14,717.77/20,311.05 = 8,431.36/x
  3. Step 3: Cross multiply
    14,717.77x = 20,311.05 × 8,431.36
  4. Step 4: Simplify right side
    14,717.77x = 171,249,755.37
  5. Step 5: Solve for x
    x = 171,249,755.37/14,717.77
  6. Step 6: Final answer
    x = 11,635.58

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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.