Home / 13,710.40-20,573.70-9,043.90

Finding the Fourth Proportional to 13,710.40, 20,573.70 and 9,043.90

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Solution

The fourth proportional to 13,710.40, 20,573.70 and 9,043.90 is: 13,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.40 : 20,573.70 = 9,043.90 : x
  2. Step 2: Convert to fraction form
    13,710.40/20,573.70 = 9,043.90/x
  3. Step 3: Cross multiply
    13,710.40x = 20,573.70 × 9,043.90
  4. Step 4: Simplify right side
    13,710.40x = 186,066,485.43
  5. Step 5: Solve for x
    x = 186,066,485.43/13,710.40
  6. Step 6: Final answer
    x = 13,571.19

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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.