Home / 14,139.81-19,513.22-8,474.76

Finding the Fourth Proportional to 14,139.81, 19,513.22 and 8,474.76

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Solution

The fourth proportional to 14,139.81, 19,513.22 and 8,474.76 is: 11,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.81 : 19,513.22 = 8,474.76 : x
  2. Step 2: Convert to fraction form
    14,139.81/19,513.22 = 8,474.76/x
  3. Step 3: Cross multiply
    14,139.81x = 19,513.22 × 8,474.76
  4. Step 4: Simplify right side
    14,139.81x = 165,369,813.95
  5. Step 5: Solve for x
    x = 165,369,813.95/14,139.81
  6. Step 6: Final answer
    x = 11,695.33

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Half scale
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Double scale
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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.