Home / 13,133.28-18,124.28-8,029.63

Finding the Fourth Proportional to 13,133.28, 18,124.28 and 8,029.63

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Solution

The fourth proportional to 13,133.28, 18,124.28 and 8,029.63 is: 11,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.28 : 18,124.28 = 8,029.63 : x
  2. Step 2: Convert to fraction form
    13,133.28/18,124.28 = 8,029.63/x
  3. Step 3: Cross multiply
    13,133.28x = 18,124.28 × 8,029.63
  4. Step 4: Simplify right side
    13,133.28x = 145,531,262.42
  5. Step 5: Solve for x
    x = 145,531,262.42/13,133.28
  6. Step 6: Final answer
    x = 11,081.11

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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.