Home / 15,039.81-20,763.54-10,010.97

Finding the Fourth Proportional to 15,039.81, 20,763.54 and 10,010.97

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Solution

The fourth proportional to 15,039.81, 20,763.54 and 10,010.97 is: 13,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.81 : 20,763.54 = 10,010.97 : x
  2. Step 2: Convert to fraction form
    15,039.81/20,763.54 = 10,010.97/x
  3. Step 3: Cross multiply
    15,039.81x = 20,763.54 × 10,010.97
  4. Step 4: Simplify right side
    15,039.81x = 207,863,176.03
  5. Step 5: Solve for x
    x = 207,863,176.03/15,039.81
  6. Step 6: Final answer
    x = 13,820.86

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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.