Home / 14,378.70-19,844.58-8,715.72

Finding the Fourth Proportional to 14,378.70, 19,844.58 and 8,715.72

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Solution

The fourth proportional to 14,378.70, 19,844.58 and 8,715.72 is: 12,028.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.70 : 19,844.58 = 8,715.72 : x
  2. Step 2: Convert to fraction form
    14,378.70/19,844.58 = 8,715.72/x
  3. Step 3: Cross multiply
    14,378.70x = 19,844.58 × 8,715.72
  4. Step 4: Simplify right side
    14,378.70x = 172,959,802.80
  5. Step 5: Solve for x
    x = 172,959,802.80/14,378.70
  6. Step 6: Final answer
    x = 12,028.89

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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.