Home / 13,974.48-21,055.02-12,641.82

Finding the Fourth Proportional to 13,974.48, 21,055.02 and 12,641.82

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Solution

The fourth proportional to 13,974.48, 21,055.02 and 12,641.82 is: 19,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.48 : 21,055.02 = 12,641.82 : x
  2. Step 2: Convert to fraction form
    13,974.48/21,055.02 = 12,641.82/x
  3. Step 3: Cross multiply
    13,974.48x = 21,055.02 × 12,641.82
  4. Step 4: Simplify right side
    13,974.48x = 266,173,772.94
  5. Step 5: Solve for x
    x = 266,173,772.94/13,974.48
  6. Step 6: Final answer
    x = 19,047.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.