Home / 18,421.02-27,630.54-5,940.75

Finding the Fourth Proportional to 18,421.02, 27,630.54 and 5,940.75

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Solution

The fourth proportional to 18,421.02, 27,630.54 and 5,940.75 is: 8,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.02 : 27,630.54 = 5,940.75 : x
  2. Step 2: Convert to fraction form
    18,421.02/27,630.54 = 5,940.75/x
  3. Step 3: Cross multiply
    18,421.02x = 27,630.54 × 5,940.75
  4. Step 4: Simplify right side
    18,421.02x = 164,146,130.51
  5. Step 5: Solve for x
    x = 164,146,130.51/18,421.02
  6. Step 6: Final answer
    x = 8,910.81

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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.