Home / 13,530.83-20,298.77-4,771.31

Finding the Fourth Proportional to 13,530.83, 20,298.77 and 4,771.31

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Solution

The fourth proportional to 13,530.83, 20,298.77 and 4,771.31 is: 7,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.83 : 20,298.77 = 4,771.31 : x
  2. Step 2: Convert to fraction form
    13,530.83/20,298.77 = 4,771.31/x
  3. Step 3: Cross multiply
    13,530.83x = 20,298.77 × 4,771.31
  4. Step 4: Simplify right side
    13,530.83x = 96,851,700.43
  5. Step 5: Solve for x
    x = 96,851,700.43/13,530.83
  6. Step 6: Final answer
    x = 7,157.85

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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.