Home / 14,133.64-21,200.70-7,890.04

Finding the Fourth Proportional to 14,133.64, 21,200.70 and 7,890.04

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Solution

The fourth proportional to 14,133.64, 21,200.70 and 7,890.04 is: 11,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.64 : 21,200.70 = 7,890.04 : x
  2. Step 2: Convert to fraction form
    14,133.64/21,200.70 = 7,890.04/x
  3. Step 3: Cross multiply
    14,133.64x = 21,200.70 × 7,890.04
  4. Step 4: Simplify right side
    14,133.64x = 167,274,371.03
  5. Step 5: Solve for x
    x = 167,274,371.03/14,133.64
  6. Step 6: Final answer
    x = 11,835.19

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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.