Home / 14,040.76-19,367.40-8,999.78

Finding the Fourth Proportional to 14,040.76, 19,367.40 and 8,999.78

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Solution

The fourth proportional to 14,040.76, 19,367.40 and 8,999.78 is: 12,414.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.76 : 19,367.40 = 8,999.78 : x
  2. Step 2: Convert to fraction form
    14,040.76/19,367.40 = 8,999.78/x
  3. Step 3: Cross multiply
    14,040.76x = 19,367.40 × 8,999.78
  4. Step 4: Simplify right side
    14,040.76x = 174,302,339.17
  5. Step 5: Solve for x
    x = 174,302,339.17/14,040.76
  6. Step 6: Final answer
    x = 12,414.02

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1.5x scale

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.