Home / 15,382.50-21,226.50-8,668.68

Finding the Fourth Proportional to 15,382.50, 21,226.50 and 8,668.68

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Solution

The fourth proportional to 15,382.50, 21,226.50 and 8,668.68 is: 11,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.50 : 21,226.50 = 8,668.68 : x
  2. Step 2: Convert to fraction form
    15,382.50/21,226.50 = 8,668.68/x
  3. Step 3: Cross multiply
    15,382.50x = 21,226.50 × 8,668.68
  4. Step 4: Simplify right side
    15,382.50x = 184,005,736.02
  5. Step 5: Solve for x
    x = 184,005,736.02/15,382.50
  6. Step 6: Final answer
    x = 11,962.02

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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.