Home / 14,359.32-19,815.57-8,071.70

Finding the Fourth Proportional to 14,359.32, 19,815.57 and 8,071.70

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Solution

The fourth proportional to 14,359.32, 19,815.57 and 8,071.70 is: 11,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.32 : 19,815.57 = 8,071.70 : x
  2. Step 2: Convert to fraction form
    14,359.32/19,815.57 = 8,071.70/x
  3. Step 3: Cross multiply
    14,359.32x = 19,815.57 × 8,071.70
  4. Step 4: Simplify right side
    14,359.32x = 159,945,237.29
  5. Step 5: Solve for x
    x = 159,945,237.29/14,359.32
  6. Step 6: Final answer
    x = 11,138.78

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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.