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Finding the Fourth Proportional to 7,008.42, 10,512.54 and 1,814.16

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Solution

The fourth proportional to 7,008.42, 10,512.54 and 1,814.16 is: 2,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.42 : 10,512.54 = 1,814.16 : x
  2. Step 2: Convert to fraction form
    7,008.42/10,512.54 = 1,814.16/x
  3. Step 3: Cross multiply
    7,008.42x = 10,512.54 × 1,814.16
  4. Step 4: Simplify right side
    7,008.42x = 19,071,429.57
  5. Step 5: Solve for x
    x = 19,071,429.57/7,008.42
  6. Step 6: Final answer
    x = 2,721.22

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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.