Home / 14,112.84-19,431.28-11,984.16

Finding the Fourth Proportional to 14,112.84, 19,431.28 and 11,984.16

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Solution

The fourth proportional to 14,112.84, 19,431.28 and 11,984.16 is: 16,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.84 : 19,431.28 = 11,984.16 : x
  2. Step 2: Convert to fraction form
    14,112.84/19,431.28 = 11,984.16/x
  3. Step 3: Cross multiply
    14,112.84x = 19,431.28 × 11,984.16
  4. Step 4: Simplify right side
    14,112.84x = 232,867,568.52
  5. Step 5: Solve for x
    x = 232,867,568.52/14,112.84
  6. Step 6: Final answer
    x = 16,500.40

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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.