Home / 13,805.02-20,709.96-5,903.20

Finding the Fourth Proportional to 13,805.02, 20,709.96 and 5,903.20

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Solution

The fourth proportional to 13,805.02, 20,709.96 and 5,903.20 is: 8,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.02 : 20,709.96 = 5,903.20 : x
  2. Step 2: Convert to fraction form
    13,805.02/20,709.96 = 5,903.20/x
  3. Step 3: Cross multiply
    13,805.02x = 20,709.96 × 5,903.20
  4. Step 4: Simplify right side
    13,805.02x = 122,255,035.87
  5. Step 5: Solve for x
    x = 122,255,035.87/13,805.02
  6. Step 6: Final answer
    x = 8,855.84

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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.