Home / 14,202.21-21,287.14-8,643.31

Finding the Fourth Proportional to 14,202.21, 21,287.14 and 8,643.31

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Solution

The fourth proportional to 14,202.21, 21,287.14 and 8,643.31 is: 12,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,202.21 : 21,287.14 = 8,643.31 : x
  2. Step 2: Convert to fraction form
    14,202.21/21,287.14 = 8,643.31/x
  3. Step 3: Cross multiply
    14,202.21x = 21,287.14 × 8,643.31
  4. Step 4: Simplify right side
    14,202.21x = 183,991,350.03
  5. Step 5: Solve for x
    x = 183,991,350.03/14,202.21
  6. Step 6: Final answer
    x = 12,955.12

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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.