Home / 18,303.83-27,424.42-9,989.69

Finding the Fourth Proportional to 18,303.83, 27,424.42 and 9,989.69

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Solution

The fourth proportional to 18,303.83, 27,424.42 and 9,989.69 is: 14,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.83 : 27,424.42 = 9,989.69 : x
  2. Step 2: Convert to fraction form
    18,303.83/27,424.42 = 9,989.69/x
  3. Step 3: Cross multiply
    18,303.83x = 27,424.42 × 9,989.69
  4. Step 4: Simplify right side
    18,303.83x = 273,961,292.13
  5. Step 5: Solve for x
    x = 273,961,292.13/18,303.83
  6. Step 6: Final answer
    x = 14,967.43

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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.