Home / 18,684.87-25,777.02-11,875.25

Finding the Fourth Proportional to 18,684.87, 25,777.02 and 11,875.25

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Solution

The fourth proportional to 18,684.87, 25,777.02 and 11,875.25 is: 16,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.87 : 25,777.02 = 11,875.25 : x
  2. Step 2: Convert to fraction form
    18,684.87/25,777.02 = 11,875.25/x
  3. Step 3: Cross multiply
    18,684.87x = 25,777.02 × 11,875.25
  4. Step 4: Simplify right side
    18,684.87x = 306,108,621.20
  5. Step 5: Solve for x
    x = 306,108,621.20/18,684.87
  6. Step 6: Final answer
    x = 16,382.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.