Home / 13,385.17-20,078.09-4,500.64

Finding the Fourth Proportional to 13,385.17, 20,078.09 and 4,500.64

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Solution

The fourth proportional to 13,385.17, 20,078.09 and 4,500.64 is: 6,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.17 : 20,078.09 = 4,500.64 : x
  2. Step 2: Convert to fraction form
    13,385.17/20,078.09 = 4,500.64/x
  3. Step 3: Cross multiply
    13,385.17x = 20,078.09 × 4,500.64
  4. Step 4: Simplify right side
    13,385.17x = 90,364,254.98
  5. Step 5: Solve for x
    x = 90,364,254.98/13,385.17
  6. Step 6: Final answer
    x = 6,751.07

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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.