Home / 15,507.48-21,400.53-8,792.97

Finding the Fourth Proportional to 15,507.48, 21,400.53 and 8,792.97

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Solution

The fourth proportional to 15,507.48, 21,400.53 and 8,792.97 is: 12,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.48 : 21,400.53 = 8,792.97 : x
  2. Step 2: Convert to fraction form
    15,507.48/21,400.53 = 8,792.97/x
  3. Step 3: Cross multiply
    15,507.48x = 21,400.53 × 8,792.97
  4. Step 4: Simplify right side
    15,507.48x = 188,174,218.27
  5. Step 5: Solve for x
    x = 188,174,218.27/15,507.48
  6. Step 6: Final answer
    x = 12,134.42

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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.