Home / 14,133.60-21,200.40-9,212.85

Finding the Fourth Proportional to 14,133.60, 21,200.40 and 9,212.85

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Solution

The fourth proportional to 14,133.60, 21,200.40 and 9,212.85 is: 13,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.60 : 21,200.40 = 9,212.85 : x
  2. Step 2: Convert to fraction form
    14,133.60/21,200.40 = 9,212.85/x
  3. Step 3: Cross multiply
    14,133.60x = 21,200.40 × 9,212.85
  4. Step 4: Simplify right side
    14,133.60x = 195,316,105.14
  5. Step 5: Solve for x
    x = 195,316,105.14/14,133.60
  6. Step 6: Final answer
    x = 13,819.28

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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.