Home / 14,107.64-19,424.21-11,978.69

Finding the Fourth Proportional to 14,107.64, 19,424.21 and 11,978.69

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Solution

The fourth proportional to 14,107.64, 19,424.21 and 11,978.69 is: 16,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.64 : 19,424.21 = 11,978.69 : x
  2. Step 2: Convert to fraction form
    14,107.64/19,424.21 = 11,978.69/x
  3. Step 3: Cross multiply
    14,107.64x = 19,424.21 × 11,978.69
  4. Step 4: Simplify right side
    14,107.64x = 232,676,433.07
  5. Step 5: Solve for x
    x = 232,676,433.07/14,107.64
  6. Step 6: Final answer
    x = 16,492.94

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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.