Home / 13,354.68-18,433.84-9,376.78

Finding the Fourth Proportional to 13,354.68, 18,433.84 and 9,376.78

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Solution

The fourth proportional to 13,354.68, 18,433.84 and 9,376.78 is: 12,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.68 : 18,433.84 = 9,376.78 : x
  2. Step 2: Convert to fraction form
    13,354.68/18,433.84 = 9,376.78/x
  3. Step 3: Cross multiply
    13,354.68x = 18,433.84 × 9,376.78
  4. Step 4: Simplify right side
    13,354.68x = 172,850,062.24
  5. Step 5: Solve for x
    x = 172,850,062.24/13,354.68
  6. Step 6: Final answer
    x = 12,943.03

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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.