Home / 15,091.07-20,825.81-9,126.72

Finding the Fourth Proportional to 15,091.07, 20,825.81 and 9,126.72

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Solution

The fourth proportional to 15,091.07, 20,825.81 and 9,126.72 is: 12,594.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.07 : 20,825.81 = 9,126.72 : x
  2. Step 2: Convert to fraction form
    15,091.07/20,825.81 = 9,126.72/x
  3. Step 3: Cross multiply
    15,091.07x = 20,825.81 × 9,126.72
  4. Step 4: Simplify right side
    15,091.07x = 190,071,291.01
  5. Step 5: Solve for x
    x = 190,071,291.01/15,091.07
  6. Step 6: Final answer
    x = 12,594.96

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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.