Home / 14,105.58-19,465.01-8,139.17

Finding the Fourth Proportional to 14,105.58, 19,465.01 and 8,139.17

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Solution

The fourth proportional to 14,105.58, 19,465.01 and 8,139.17 is: 11,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.58 : 19,465.01 = 8,139.17 : x
  2. Step 2: Convert to fraction form
    14,105.58/19,465.01 = 8,139.17/x
  3. Step 3: Cross multiply
    14,105.58x = 19,465.01 × 8,139.17
  4. Step 4: Simplify right side
    14,105.58x = 158,429,025.44
  5. Step 5: Solve for x
    x = 158,429,025.44/14,105.58
  6. Step 6: Final answer
    x = 11,231.66

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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.