Home / 14,669.12-20,243.30-7,954.90

Finding the Fourth Proportional to 14,669.12, 20,243.30 and 7,954.90

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Solution

The fourth proportional to 14,669.12, 20,243.30 and 7,954.90 is: 10,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.12 : 20,243.30 = 7,954.90 : x
  2. Step 2: Convert to fraction form
    14,669.12/20,243.30 = 7,954.90/x
  3. Step 3: Cross multiply
    14,669.12x = 20,243.30 × 7,954.90
  4. Step 4: Simplify right side
    14,669.12x = 161,033,427.17
  5. Step 5: Solve for x
    x = 161,033,427.17/14,669.12
  6. Step 6: Final answer
    x = 10,977.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.