Home / 13,415.02-20,122.53-5,623.83

Finding the Fourth Proportional to 13,415.02, 20,122.53 and 5,623.83

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Solution

The fourth proportional to 13,415.02, 20,122.53 and 5,623.83 is: 8,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.02 : 20,122.53 = 5,623.83 : x
  2. Step 2: Convert to fraction form
    13,415.02/20,122.53 = 5,623.83/x
  3. Step 3: Cross multiply
    13,415.02x = 20,122.53 × 5,623.83
  4. Step 4: Simplify right side
    13,415.02x = 113,165,666.80
  5. Step 5: Solve for x
    x = 113,165,666.80/13,415.02
  6. Step 6: Final answer
    x = 8,435.75

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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.