Home / 15,751.21-23,610.62-6,990.25

Finding the Fourth Proportional to 15,751.21, 23,610.62 and 6,990.25

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Solution

The fourth proportional to 15,751.21, 23,610.62 and 6,990.25 is: 10,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.21 : 23,610.62 = 6,990.25 : x
  2. Step 2: Convert to fraction form
    15,751.21/23,610.62 = 6,990.25/x
  3. Step 3: Cross multiply
    15,751.21x = 23,610.62 × 6,990.25
  4. Step 4: Simplify right side
    15,751.21x = 165,044,101.50
  5. Step 5: Solve for x
    x = 165,044,101.50/15,751.21
  6. Step 6: Final answer
    x = 10,478.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.