Home / 14,116.41-19,478.07-8,145.90

Finding the Fourth Proportional to 14,116.41, 19,478.07 and 8,145.90

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Solution

The fourth proportional to 14,116.41, 19,478.07 and 8,145.90 is: 11,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,116.41 : 19,478.07 = 8,145.90 : x
  2. Step 2: Convert to fraction form
    14,116.41/19,478.07 = 8,145.90/x
  3. Step 3: Cross multiply
    14,116.41x = 19,478.07 × 8,145.90
  4. Step 4: Simplify right side
    14,116.41x = 158,666,410.41
  5. Step 5: Solve for x
    x = 158,666,410.41/14,116.41
  6. Step 6: Final answer
    x = 11,239.86

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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.