Home / 14,358.89-19,814.28-8,696.78

Finding the Fourth Proportional to 14,358.89, 19,814.28 and 8,696.78

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Solution

The fourth proportional to 14,358.89, 19,814.28 and 8,696.78 is: 12,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.89 : 19,814.28 = 8,696.78 : x
  2. Step 2: Convert to fraction form
    14,358.89/19,814.28 = 8,696.78/x
  3. Step 3: Cross multiply
    14,358.89x = 19,814.28 × 8,696.78
  4. Step 4: Simplify right side
    14,358.89x = 172,320,334.95
  5. Step 5: Solve for x
    x = 172,320,334.95/14,358.89
  6. Step 6: Final answer
    x = 12,000.96

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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.