Home / 8,009.12-11,051.85-5,176.58

Finding the Fourth Proportional to 8,009.12, 11,051.85 and 5,176.58

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Solution

The fourth proportional to 8,009.12, 11,051.85 and 5,176.58 is: 7,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.12 : 11,051.85 = 5,176.58 : x
  2. Step 2: Convert to fraction form
    8,009.12/11,051.85 = 5,176.58/x
  3. Step 3: Cross multiply
    8,009.12x = 11,051.85 × 5,176.58
  4. Step 4: Simplify right side
    8,009.12x = 57,210,785.67
  5. Step 5: Solve for x
    x = 57,210,785.67/8,009.12
  6. Step 6: Final answer
    x = 7,143.20

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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.