Home / 14,465.28-19,956.72-8,172.96

Finding the Fourth Proportional to 14,465.28, 19,956.72 and 8,172.96

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Solution

The fourth proportional to 14,465.28, 19,956.72 and 8,172.96 is: 11,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.28 : 19,956.72 = 8,172.96 : x
  2. Step 2: Convert to fraction form
    14,465.28/19,956.72 = 8,172.96/x
  3. Step 3: Cross multiply
    14,465.28x = 19,956.72 × 8,172.96
  4. Step 4: Simplify right side
    14,465.28x = 163,105,474.29
  5. Step 5: Solve for x
    x = 163,105,474.29/14,465.28
  6. Step 6: Final answer
    x = 11,275.65

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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.