Home / 13,464.20-18,577.78-7,798.61

Finding the Fourth Proportional to 13,464.20, 18,577.78 and 7,798.61

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Solution

The fourth proportional to 13,464.20, 18,577.78 and 7,798.61 is: 10,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.20 : 18,577.78 = 7,798.61 : x
  2. Step 2: Convert to fraction form
    13,464.20/18,577.78 = 7,798.61/x
  3. Step 3: Cross multiply
    13,464.20x = 18,577.78 × 7,798.61
  4. Step 4: Simplify right side
    13,464.20x = 144,880,748.50
  5. Step 5: Solve for x
    x = 144,880,748.50/13,464.20
  6. Step 6: Final answer
    x = 10,760.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.