Home / 18,220.32-25,150.34-10,669.08

Finding the Fourth Proportional to 18,220.32, 25,150.34 and 10,669.08

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Solution

The fourth proportional to 18,220.32, 25,150.34 and 10,669.08 is: 14,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.32 : 25,150.34 = 10,669.08 : x
  2. Step 2: Convert to fraction form
    18,220.32/25,150.34 = 10,669.08/x
  3. Step 3: Cross multiply
    18,220.32x = 25,150.34 × 10,669.08
  4. Step 4: Simplify right side
    18,220.32x = 268,330,936.14
  5. Step 5: Solve for x
    x = 268,330,936.14/18,220.32
  6. Step 6: Final answer
    x = 14,727.02

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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.