Home / 18,570.92-25,629.98-12,904.16

Finding the Fourth Proportional to 18,570.92, 25,629.98 and 12,904.16

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Solution

The fourth proportional to 18,570.92, 25,629.98 and 12,904.16 is: 17,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.92 : 25,629.98 = 12,904.16 : x
  2. Step 2: Convert to fraction form
    18,570.92/25,629.98 = 12,904.16/x
  3. Step 3: Cross multiply
    18,570.92x = 25,629.98 × 12,904.16
  4. Step 4: Simplify right side
    18,570.92x = 330,733,170.05
  5. Step 5: Solve for x
    x = 330,733,170.05/18,570.92
  6. Step 6: Final answer
    x = 17,809.20

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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.