Home / 18,999.15-28,498.79-5,851.45

Finding the Fourth Proportional to 18,999.15, 28,498.79 and 5,851.45

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Solution

The fourth proportional to 18,999.15, 28,498.79 and 5,851.45 is: 8,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.15 : 28,498.79 = 5,851.45 : x
  2. Step 2: Convert to fraction form
    18,999.15/28,498.79 = 5,851.45/x
  3. Step 3: Cross multiply
    18,999.15x = 28,498.79 × 5,851.45
  4. Step 4: Simplify right side
    18,999.15x = 166,759,244.75
  5. Step 5: Solve for x
    x = 166,759,244.75/18,999.15
  6. Step 6: Final answer
    x = 8,777.20

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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.