Home / 15,613.06-21,540.78-8,893.93

Finding the Fourth Proportional to 15,613.06, 21,540.78 and 8,893.93

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Solution

The fourth proportional to 15,613.06, 21,540.78 and 8,893.93 is: 12,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.06 : 21,540.78 = 8,893.93 : x
  2. Step 2: Convert to fraction form
    15,613.06/21,540.78 = 8,893.93/x
  3. Step 3: Cross multiply
    15,613.06x = 21,540.78 × 8,893.93
  4. Step 4: Simplify right side
    15,613.06x = 191,582,281.36
  5. Step 5: Solve for x
    x = 191,582,281.36/15,613.06
  6. Step 6: Final answer
    x = 12,270.64

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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.