Home / 12,113.60-18,176.04-7,192.92

Finding the Fourth Proportional to 12,113.60, 18,176.04 and 7,192.92

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Solution

The fourth proportional to 12,113.60, 18,176.04 and 7,192.92 is: 10,792.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.60 : 18,176.04 = 7,192.92 : x
  2. Step 2: Convert to fraction form
    12,113.60/18,176.04 = 7,192.92/x
  3. Step 3: Cross multiply
    12,113.60x = 18,176.04 × 7,192.92
  4. Step 4: Simplify right side
    12,113.60x = 130,738,801.64
  5. Step 5: Solve for x
    x = 130,738,801.64/12,113.60
  6. Step 6: Final answer
    x = 10,792.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.