Home / 12,865.69-19,299.93-4,098.58

Finding the Fourth Proportional to 12,865.69, 19,299.93 and 4,098.58

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Solution

The fourth proportional to 12,865.69, 19,299.93 and 4,098.58 is: 6,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.69 : 19,299.93 = 4,098.58 : x
  2. Step 2: Convert to fraction form
    12,865.69/19,299.93 = 4,098.58/x
  3. Step 3: Cross multiply
    12,865.69x = 19,299.93 × 4,098.58
  4. Step 4: Simplify right side
    12,865.69x = 79,102,307.10
  5. Step 5: Solve for x
    x = 79,102,307.10/12,865.69
  6. Step 6: Final answer
    x = 6,148.31

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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.