Home / 18,881.02-28,312.26-7,793.20

Finding the Fourth Proportional to 18,881.02, 28,312.26 and 7,793.20

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Solution

The fourth proportional to 18,881.02, 28,312.26 and 7,793.20 is: 11,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.02 : 28,312.26 = 7,793.20 : x
  2. Step 2: Convert to fraction form
    18,881.02/28,312.26 = 7,793.20/x
  3. Step 3: Cross multiply
    18,881.02x = 28,312.26 × 7,793.20
  4. Step 4: Simplify right side
    18,881.02x = 220,643,104.63
  5. Step 5: Solve for x
    x = 220,643,104.63/18,881.02
  6. Step 6: Final answer
    x = 11,685.97

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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.