Home / 15,415.12-23,122.41-4,321.64

Finding the Fourth Proportional to 15,415.12, 23,122.41 and 4,321.64

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Solution

The fourth proportional to 15,415.12, 23,122.41 and 4,321.64 is: 6,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.12 : 23,122.41 = 4,321.64 : x
  2. Step 2: Convert to fraction form
    15,415.12/23,122.41 = 4,321.64/x
  3. Step 3: Cross multiply
    15,415.12x = 23,122.41 × 4,321.64
  4. Step 4: Simplify right side
    15,415.12x = 99,926,731.95
  5. Step 5: Solve for x
    x = 99,926,731.95/15,415.12
  6. Step 6: Final answer
    x = 6,482.38

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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.