Home / 8,721.06-12,035.17-4,742.18

Finding the Fourth Proportional to 8,721.06, 12,035.17 and 4,742.18

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Solution

The fourth proportional to 8,721.06, 12,035.17 and 4,742.18 is: 6,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.06 : 12,035.17 = 4,742.18 : x
  2. Step 2: Convert to fraction form
    8,721.06/12,035.17 = 4,742.18/x
  3. Step 3: Cross multiply
    8,721.06x = 12,035.17 × 4,742.18
  4. Step 4: Simplify right side
    8,721.06x = 57,072,942.47
  5. Step 5: Solve for x
    x = 57,072,942.47/8,721.06
  6. Step 6: Final answer
    x = 6,544.27

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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.