Home / 15,740.01-21,720.57-9,020.97

Finding the Fourth Proportional to 15,740.01, 21,720.57 and 9,020.97

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Solution

The fourth proportional to 15,740.01, 21,720.57 and 9,020.97 is: 12,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.01 : 21,720.57 = 9,020.97 : x
  2. Step 2: Convert to fraction form
    15,740.01/21,720.57 = 9,020.97/x
  3. Step 3: Cross multiply
    15,740.01x = 21,720.57 × 9,020.97
  4. Step 4: Simplify right side
    15,740.01x = 195,940,610.35
  5. Step 5: Solve for x
    x = 195,940,610.35/15,740.01
  6. Step 6: Final answer
    x = 12,448.57

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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.