Home / 13,719.56-20,612.16-8,798.80

Finding the Fourth Proportional to 13,719.56, 20,612.16 and 8,798.80

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Solution

The fourth proportional to 13,719.56, 20,612.16 and 8,798.80 is: 13,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.56 : 20,612.16 = 8,798.80 : x
  2. Step 2: Convert to fraction form
    13,719.56/20,612.16 = 8,798.80/x
  3. Step 3: Cross multiply
    13,719.56x = 20,612.16 × 8,798.80
  4. Step 4: Simplify right side
    13,719.56x = 181,362,273.41
  5. Step 5: Solve for x
    x = 181,362,273.41/13,719.56
  6. Step 6: Final answer
    x = 13,219.25

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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.