Home / 8,172.42-11,275.45-4,814.01

Finding the Fourth Proportional to 8,172.42, 11,275.45 and 4,814.01

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Solution

The fourth proportional to 8,172.42, 11,275.45 and 4,814.01 is: 6,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.42 : 11,275.45 = 4,814.01 : x
  2. Step 2: Convert to fraction form
    8,172.42/11,275.45 = 4,814.01/x
  3. Step 3: Cross multiply
    8,172.42x = 11,275.45 × 4,814.01
  4. Step 4: Simplify right side
    8,172.42x = 54,280,112.39
  5. Step 5: Solve for x
    x = 54,280,112.39/8,172.42
  6. Step 6: Final answer
    x = 6,641.87

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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.