Home / 15,766.08-21,736.98-12,923.16

Finding the Fourth Proportional to 15,766.08, 21,736.98 and 12,923.16

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Solution

The fourth proportional to 15,766.08, 21,736.98 and 12,923.16 is: 17,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.08 : 21,736.98 = 12,923.16 : x
  2. Step 2: Convert to fraction form
    15,766.08/21,736.98 = 12,923.16/x
  3. Step 3: Cross multiply
    15,766.08x = 21,736.98 × 12,923.16
  4. Step 4: Simplify right side
    15,766.08x = 280,910,470.46
  5. Step 5: Solve for x
    x = 280,910,470.46/15,766.08
  6. Step 6: Final answer
    x = 17,817.39

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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.