Home / 14,191.28-19,583.74-7,818.48

Finding the Fourth Proportional to 14,191.28, 19,583.74 and 7,818.48

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Solution

The fourth proportional to 14,191.28, 19,583.74 and 7,818.48 is: 10,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.28 : 19,583.74 = 7,818.48 : x
  2. Step 2: Convert to fraction form
    14,191.28/19,583.74 = 7,818.48/x
  3. Step 3: Cross multiply
    14,191.28x = 19,583.74 × 7,818.48
  4. Step 4: Simplify right side
    14,191.28x = 153,115,059.97
  5. Step 5: Solve for x
    x = 153,115,059.97/14,191.28
  6. Step 6: Final answer
    x = 10,789.37

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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.