Home / 14,111.49-21,179.93-7,543.29

Finding the Fourth Proportional to 14,111.49, 21,179.93 and 7,543.29

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Solution

The fourth proportional to 14,111.49, 21,179.93 and 7,543.29 is: 11,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.49 : 21,179.93 = 7,543.29 : x
  2. Step 2: Convert to fraction form
    14,111.49/21,179.93 = 7,543.29/x
  3. Step 3: Cross multiply
    14,111.49x = 21,179.93 × 7,543.29
  4. Step 4: Simplify right side
    14,111.49x = 159,766,316.45
  5. Step 5: Solve for x
    x = 159,766,316.45/14,111.49
  6. Step 6: Final answer
    x = 11,321.72

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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.