Home / 15,219.97-21,004.52-8,506.08

Finding the Fourth Proportional to 15,219.97, 21,004.52 and 8,506.08

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Solution

The fourth proportional to 15,219.97, 21,004.52 and 8,506.08 is: 11,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.97 : 21,004.52 = 8,506.08 : x
  2. Step 2: Convert to fraction form
    15,219.97/21,004.52 = 8,506.08/x
  3. Step 3: Cross multiply
    15,219.97x = 21,004.52 × 8,506.08
  4. Step 4: Simplify right side
    15,219.97x = 178,666,084.95
  5. Step 5: Solve for x
    x = 178,666,084.95/15,219.97
  6. Step 6: Final answer
    x = 11,738.93

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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.