Home / 13,349.76-18,441.54-12,152.76

Finding the Fourth Proportional to 13,349.76, 18,441.54 and 12,152.76

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Solution

The fourth proportional to 13,349.76, 18,441.54 and 12,152.76 is: 16,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.76 : 18,441.54 = 12,152.76 : x
  2. Step 2: Convert to fraction form
    13,349.76/18,441.54 = 12,152.76/x
  3. Step 3: Cross multiply
    13,349.76x = 18,441.54 × 12,152.76
  4. Step 4: Simplify right side
    13,349.76x = 224,115,609.65
  5. Step 5: Solve for x
    x = 224,115,609.65/13,349.76
  6. Step 6: Final answer
    x = 16,787.99

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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.