Home / 13,351.64-18,434.39-8,323.56

Finding the Fourth Proportional to 13,351.64, 18,434.39 and 8,323.56

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Solution

The fourth proportional to 13,351.64, 18,434.39 and 8,323.56 is: 11,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.64 : 18,434.39 = 8,323.56 : x
  2. Step 2: Convert to fraction form
    13,351.64/18,434.39 = 8,323.56/x
  3. Step 3: Cross multiply
    13,351.64x = 18,434.39 × 8,323.56
  4. Step 4: Simplify right side
    13,351.64x = 153,439,709.61
  5. Step 5: Solve for x
    x = 153,439,709.61/13,351.64
  6. Step 6: Final answer
    x = 11,492.20

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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.