Home / 15,346.06-21,085.78-12,196.78

Finding the Fourth Proportional to 15,346.06, 21,085.78 and 12,196.78

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Solution

The fourth proportional to 15,346.06, 21,085.78 and 12,196.78 is: 16,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.06 : 21,085.78 = 12,196.78 : x
  2. Step 2: Convert to fraction form
    15,346.06/21,085.78 = 12,196.78/x
  3. Step 3: Cross multiply
    15,346.06x = 21,085.78 × 12,196.78
  4. Step 4: Simplify right side
    15,346.06x = 257,178,619.79
  5. Step 5: Solve for x
    x = 257,178,619.79/15,346.06
  6. Step 6: Final answer
    x = 16,758.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.