Home / 15,749.21-23,620.57-6,978.53

Finding the Fourth Proportional to 15,749.21, 23,620.57 and 6,978.53

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Solution

The fourth proportional to 15,749.21, 23,620.57 and 6,978.53 is: 10,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.21 : 23,620.57 = 6,978.53 : x
  2. Step 2: Convert to fraction form
    15,749.21/23,620.57 = 6,978.53/x
  3. Step 3: Cross multiply
    15,749.21x = 23,620.57 × 6,978.53
  4. Step 4: Simplify right side
    15,749.21x = 164,836,856.36
  5. Step 5: Solve for x
    x = 164,836,856.36/15,749.21
  6. Step 6: Final answer
    x = 10,466.36

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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.