Home / 15,315.44-22,969.36-4,221.64

Finding the Fourth Proportional to 15,315.44, 22,969.36 and 4,221.64

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Solution

The fourth proportional to 15,315.44, 22,969.36 and 4,221.64 is: 6,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.44 : 22,969.36 = 4,221.64 : x
  2. Step 2: Convert to fraction form
    15,315.44/22,969.36 = 4,221.64/x
  3. Step 3: Cross multiply
    15,315.44x = 22,969.36 × 4,221.64
  4. Step 4: Simplify right side
    15,315.44x = 96,968,368.95
  5. Step 5: Solve for x
    x = 96,968,368.95/15,315.44
  6. Step 6: Final answer
    x = 6,331.41

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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.