Home / 14,340.12-19,796.10-11,715.72

Finding the Fourth Proportional to 14,340.12, 19,796.10 and 11,715.72

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Solution

The fourth proportional to 14,340.12, 19,796.10 and 11,715.72 is: 16,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.12 : 19,796.10 = 11,715.72 : x
  2. Step 2: Convert to fraction form
    14,340.12/19,796.10 = 11,715.72/x
  3. Step 3: Cross multiply
    14,340.12x = 19,796.10 × 11,715.72
  4. Step 4: Simplify right side
    14,340.12x = 231,925,564.69
  5. Step 5: Solve for x
    x = 231,925,564.69/14,340.12
  6. Step 6: Final answer
    x = 16,173.20

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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.