Home / 14,272.95-21,415.55-5,513.97

Finding the Fourth Proportional to 14,272.95, 21,415.55 and 5,513.97

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Solution

The fourth proportional to 14,272.95, 21,415.55 and 5,513.97 is: 8,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.95 : 21,415.55 = 5,513.97 : x
  2. Step 2: Convert to fraction form
    14,272.95/21,415.55 = 5,513.97/x
  3. Step 3: Cross multiply
    14,272.95x = 21,415.55 × 5,513.97
  4. Step 4: Simplify right side
    14,272.95x = 118,084,672.66
  5. Step 5: Solve for x
    x = 118,084,672.66/14,272.95
  6. Step 6: Final answer
    x = 8,273.32

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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.