Home / 15,640.52-21,584.10-8,927.06

Finding the Fourth Proportional to 15,640.52, 21,584.10 and 8,927.06

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Solution

The fourth proportional to 15,640.52, 21,584.10 and 8,927.06 is: 12,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.52 : 21,584.10 = 8,927.06 : x
  2. Step 2: Convert to fraction form
    15,640.52/21,584.10 = 8,927.06/x
  3. Step 3: Cross multiply
    15,640.52x = 21,584.10 × 8,927.06
  4. Step 4: Simplify right side
    15,640.52x = 192,682,555.75
  5. Step 5: Solve for x
    x = 192,682,555.75/15,640.52
  6. Step 6: Final answer
    x = 12,319.45

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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.