Home / 15,270.70-23,010.06-12,558.12

Finding the Fourth Proportional to 15,270.70, 23,010.06 and 12,558.12

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Solution

The fourth proportional to 15,270.70, 23,010.06 and 12,558.12 is: 18,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.70 : 23,010.06 = 12,558.12 : x
  2. Step 2: Convert to fraction form
    15,270.70/23,010.06 = 12,558.12/x
  3. Step 3: Cross multiply
    15,270.70x = 23,010.06 × 12,558.12
  4. Step 4: Simplify right side
    15,270.70x = 288,963,094.69
  5. Step 5: Solve for x
    x = 288,963,094.69/15,270.70
  6. Step 6: Final answer
    x = 18,922.71

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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.