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Finding the Fourth Proportional to 13,092.68, 18,068.04 and 7,124.48

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Solution

The fourth proportional to 13,092.68, 18,068.04 and 7,124.48 is: 9,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.68 : 18,068.04 = 7,124.48 : x
  2. Step 2: Convert to fraction form
    13,092.68/18,068.04 = 7,124.48/x
  3. Step 3: Cross multiply
    13,092.68x = 18,068.04 × 7,124.48
  4. Step 4: Simplify right side
    13,092.68x = 128,725,389.62
  5. Step 5: Solve for x
    x = 128,725,389.62/13,092.68
  6. Step 6: Final answer
    x = 9,831.86

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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.