Home / 11,820.16-17,730.24-3,055.12

Finding the Fourth Proportional to 11,820.16, 17,730.24 and 3,055.12

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Solution

The fourth proportional to 11,820.16, 17,730.24 and 3,055.12 is: 4,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.16 : 17,730.24 = 3,055.12 : x
  2. Step 2: Convert to fraction form
    11,820.16/17,730.24 = 3,055.12/x
  3. Step 3: Cross multiply
    11,820.16x = 17,730.24 × 3,055.12
  4. Step 4: Simplify right side
    11,820.16x = 54,168,010.83
  5. Step 5: Solve for x
    x = 54,168,010.83/11,820.16
  6. Step 6: Final answer
    x = 4,582.68

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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.