Home / 15,554.22-21,464.82-8,480.63

Finding the Fourth Proportional to 15,554.22, 21,464.82 and 8,480.63

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Solution

The fourth proportional to 15,554.22, 21,464.82 and 8,480.63 is: 11,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.22 : 21,464.82 = 8,480.63 : x
  2. Step 2: Convert to fraction form
    15,554.22/21,464.82 = 8,480.63/x
  3. Step 3: Cross multiply
    15,554.22x = 21,464.82 × 8,480.63
  4. Step 4: Simplify right side
    15,554.22x = 182,035,089.11
  5. Step 5: Solve for x
    x = 182,035,089.11/15,554.22
  6. Step 6: Final answer
    x = 11,703.26

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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.