Home / 14,210.70-21,322.19-7,629.20

Finding the Fourth Proportional to 14,210.70, 21,322.19 and 7,629.20

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Solution

The fourth proportional to 14,210.70, 21,322.19 and 7,629.20 is: 11,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.70 : 21,322.19 = 7,629.20 : x
  2. Step 2: Convert to fraction form
    14,210.70/21,322.19 = 7,629.20/x
  3. Step 3: Cross multiply
    14,210.70x = 21,322.19 × 7,629.20
  4. Step 4: Simplify right side
    14,210.70x = 162,671,107.19
  5. Step 5: Solve for x
    x = 162,671,107.19/14,210.70
  6. Step 6: Final answer
    x = 11,447.09

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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.