Home / 14,409.16-19,885.24-8,121.53

Finding the Fourth Proportional to 14,409.16, 19,885.24 and 8,121.53

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Solution

The fourth proportional to 14,409.16, 19,885.24 and 8,121.53 is: 11,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.16 : 19,885.24 = 8,121.53 : x
  2. Step 2: Convert to fraction form
    14,409.16/19,885.24 = 8,121.53/x
  3. Step 3: Cross multiply
    14,409.16x = 19,885.24 × 8,121.53
  4. Step 4: Simplify right side
    14,409.16x = 161,498,573.22
  5. Step 5: Solve for x
    x = 161,498,573.22/14,409.16
  6. Step 6: Final answer
    x = 11,208.05

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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.