Home / 8,051.12-11,117.28-5,071.76

Finding the Fourth Proportional to 8,051.12, 11,117.28 and 5,071.76

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Solution

The fourth proportional to 8,051.12, 11,117.28 and 5,071.76 is: 7,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.12 : 11,117.28 = 5,071.76 : x
  2. Step 2: Convert to fraction form
    8,051.12/11,117.28 = 5,071.76/x
  3. Step 3: Cross multiply
    8,051.12x = 11,117.28 × 5,071.76
  4. Step 4: Simplify right side
    8,051.12x = 56,384,176.01
  5. Step 5: Solve for x
    x = 56,384,176.01/8,051.12
  6. Step 6: Final answer
    x = 7,003.27

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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.