Home / 12,511.14-18,766.74-10,159.98

Finding the Fourth Proportional to 12,511.14, 18,766.74 and 10,159.98

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Solution

The fourth proportional to 12,511.14, 18,766.74 and 10,159.98 is: 15,239.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.14 : 18,766.74 = 10,159.98 : x
  2. Step 2: Convert to fraction form
    12,511.14/18,766.74 = 10,159.98/x
  3. Step 3: Cross multiply
    12,511.14x = 18,766.74 × 10,159.98
  4. Step 4: Simplify right side
    12,511.14x = 190,669,703.07
  5. Step 5: Solve for x
    x = 190,669,703.07/12,511.14
  6. Step 6: Final answer
    x = 15,239.99

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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.