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Finding the Fourth Proportional to 10,371, 15,558.42 and 4,899

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Solution

The fourth proportional to 10,371, 15,558.42 and 4,899 is: 7,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371 : 15,558.42 = 4,899 : x
  2. Step 2: Convert to fraction form
    10,371/15,558.42 = 4,899/x
  3. Step 3: Cross multiply
    10,371x = 15,558.42 × 4,899
  4. Step 4: Simplify right side
    10,371x = 76,220,699.58
  5. Step 5: Solve for x
    x = 76,220,699.58/10,371
  6. Step 6: Final answer
    x = 7,349.41

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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.