Home / 14,143.30-19,515.58-8,173.81

Finding the Fourth Proportional to 14,143.30, 19,515.58 and 8,173.81

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Solution

The fourth proportional to 14,143.30, 19,515.58 and 8,173.81 is: 11,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.30 : 19,515.58 = 8,173.81 : x
  2. Step 2: Convert to fraction form
    14,143.30/19,515.58 = 8,173.81/x
  3. Step 3: Cross multiply
    14,143.30x = 19,515.58 × 8,173.81
  4. Step 4: Simplify right side
    14,143.30x = 159,516,642.96
  5. Step 5: Solve for x
    x = 159,516,642.96/14,143.30
  6. Step 6: Final answer
    x = 11,278.61

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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.