Home / 14,263.89-19,682.46-7,889.62

Finding the Fourth Proportional to 14,263.89, 19,682.46 and 7,889.62

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Solution

The fourth proportional to 14,263.89, 19,682.46 and 7,889.62 is: 10,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.89 : 19,682.46 = 7,889.62 : x
  2. Step 2: Convert to fraction form
    14,263.89/19,682.46 = 7,889.62/x
  3. Step 3: Cross multiply
    14,263.89x = 19,682.46 × 7,889.62
  4. Step 4: Simplify right side
    14,263.89x = 155,287,130.07
  5. Step 5: Solve for x
    x = 155,287,130.07/14,263.89
  6. Step 6: Final answer
    x = 10,886.73

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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.