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Finding the Fourth Proportional to 10,858, 14,984.04 and 6,142.18

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Solution

The fourth proportional to 10,858, 14,984.04 and 6,142.18 is: 8,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858 : 14,984.04 = 6,142.18 : x
  2. Step 2: Convert to fraction form
    10,858/14,984.04 = 6,142.18/x
  3. Step 3: Cross multiply
    10,858x = 14,984.04 × 6,142.18
  4. Step 4: Simplify right side
    10,858x = 92,034,670.81
  5. Step 5: Solve for x
    x = 92,034,670.81/10,858
  6. Step 6: Final answer
    x = 8,476.21

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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.