Home / 13,311.63-19,927.59-12,838.49

Finding the Fourth Proportional to 13,311.63, 19,927.59 and 12,838.49

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Solution

The fourth proportional to 13,311.63, 19,927.59 and 12,838.49 is: 19,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.63 : 19,927.59 = 12,838.49 : x
  2. Step 2: Convert to fraction form
    13,311.63/19,927.59 = 12,838.49/x
  3. Step 3: Cross multiply
    13,311.63x = 19,927.59 × 12,838.49
  4. Step 4: Simplify right side
    13,311.63x = 255,840,164.94
  5. Step 5: Solve for x
    x = 255,840,164.94/13,311.63
  6. Step 6: Final answer
    x = 19,219.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.