Home / 13,724.01-18,924.11-8,935.13

Finding the Fourth Proportional to 13,724.01, 18,924.11 and 8,935.13

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Solution

The fourth proportional to 13,724.01, 18,924.11 and 8,935.13 is: 12,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.01 : 18,924.11 = 8,935.13 : x
  2. Step 2: Convert to fraction form
    13,724.01/18,924.11 = 8,935.13/x
  3. Step 3: Cross multiply
    13,724.01x = 18,924.11 × 8,935.13
  4. Step 4: Simplify right side
    13,724.01x = 169,089,243.69
  5. Step 5: Solve for x
    x = 169,089,243.69/13,724.01
  6. Step 6: Final answer
    x = 12,320.69

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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.