Home / 18,133.76-27,200.55-9,866.33

Finding the Fourth Proportional to 18,133.76, 27,200.55 and 9,866.33

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Solution

The fourth proportional to 18,133.76, 27,200.55 and 9,866.33 is: 14,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.76 : 27,200.55 = 9,866.33 : x
  2. Step 2: Convert to fraction form
    18,133.76/27,200.55 = 9,866.33/x
  3. Step 3: Cross multiply
    18,133.76x = 27,200.55 × 9,866.33
  4. Step 4: Simplify right side
    18,133.76x = 268,369,612.61
  5. Step 5: Solve for x
    x = 268,369,612.61/18,133.76
  6. Step 6: Final answer
    x = 14,799.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.