Home / 14,130.31-19,497.63-8,079.49

Finding the Fourth Proportional to 14,130.31, 19,497.63 and 8,079.49

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Solution

The fourth proportional to 14,130.31, 19,497.63 and 8,079.49 is: 11,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.31 : 19,497.63 = 8,079.49 : x
  2. Step 2: Convert to fraction form
    14,130.31/19,497.63 = 8,079.49/x
  3. Step 3: Cross multiply
    14,130.31x = 19,497.63 × 8,079.49
  4. Step 4: Simplify right side
    14,130.31x = 157,530,906.61
  5. Step 5: Solve for x
    x = 157,530,906.61/14,130.31
  6. Step 6: Final answer
    x = 11,148.44

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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.