Home / 15,270.72-23,010.12-12,558.16

Finding the Fourth Proportional to 15,270.72, 23,010.12 and 12,558.16

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Solution

The fourth proportional to 15,270.72, 23,010.12 and 12,558.16 is: 18,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.72 : 23,010.12 = 12,558.16 : x
  2. Step 2: Convert to fraction form
    15,270.72/23,010.12 = 12,558.16/x
  3. Step 3: Cross multiply
    15,270.72x = 23,010.12 × 12,558.16
  4. Step 4: Simplify right side
    15,270.72x = 288,964,797.34
  5. Step 5: Solve for x
    x = 288,964,797.34/15,270.72
  6. Step 6: Final answer
    x = 18,922.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.