Home / 18,578.04-25,628.16-12,203.76

Finding the Fourth Proportional to 18,578.04, 25,628.16 and 12,203.76

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Solution

The fourth proportional to 18,578.04, 25,628.16 and 12,203.76 is: 16,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.04 : 25,628.16 = 12,203.76 : x
  2. Step 2: Convert to fraction form
    18,578.04/25,628.16 = 12,203.76/x
  3. Step 3: Cross multiply
    18,578.04x = 25,628.16 × 12,203.76
  4. Step 4: Simplify right side
    18,578.04x = 312,759,913.88
  5. Step 5: Solve for x
    x = 312,759,913.88/18,578.04
  6. Step 6: Final answer
    x = 16,834.93

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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.