Home / 13,311.18-19,926.89-12,838.04

Finding the Fourth Proportional to 13,311.18, 19,926.89 and 12,838.04

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Solution

The fourth proportional to 13,311.18, 19,926.89 and 12,838.04 is: 19,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.18 : 19,926.89 = 12,838.04 : x
  2. Step 2: Convert to fraction form
    13,311.18/19,926.89 = 12,838.04/x
  3. Step 3: Cross multiply
    13,311.18x = 19,926.89 × 12,838.04
  4. Step 4: Simplify right side
    13,311.18x = 255,822,047.07
  5. Step 5: Solve for x
    x = 255,822,047.07/13,311.18
  6. Step 6: Final answer
    x = 19,218.59

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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.