Home / 13,351.76-18,444.30-12,154.76

Finding the Fourth Proportional to 13,351.76, 18,444.30 and 12,154.76

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Solution

The fourth proportional to 13,351.76, 18,444.30 and 12,154.76 is: 16,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.76 : 18,444.30 = 12,154.76 : x
  2. Step 2: Convert to fraction form
    13,351.76/18,444.30 = 12,154.76/x
  3. Step 3: Cross multiply
    13,351.76x = 18,444.30 × 12,154.76
  4. Step 4: Simplify right side
    13,351.76x = 224,186,039.87
  5. Step 5: Solve for x
    x = 224,186,039.87/13,351.76
  6. Step 6: Final answer
    x = 16,790.75

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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.