Home / 18,216.15-25,133.32-10,664.31

Finding the Fourth Proportional to 18,216.15, 25,133.32 and 10,664.31

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Solution

The fourth proportional to 18,216.15, 25,133.32 and 10,664.31 is: 14,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.15 : 25,133.32 = 10,664.31 : x
  2. Step 2: Convert to fraction form
    18,216.15/25,133.32 = 10,664.31/x
  3. Step 3: Cross multiply
    18,216.15x = 25,133.32 × 10,664.31
  4. Step 4: Simplify right side
    18,216.15x = 268,029,515.81
  5. Step 5: Solve for x
    x = 268,029,515.81/18,216.15
  6. Step 6: Final answer
    x = 14,713.84

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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.