Home / 14,037.36-21,040.92-7,112.40

Finding the Fourth Proportional to 14,037.36, 21,040.92 and 7,112.40

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Solution

The fourth proportional to 14,037.36, 21,040.92 and 7,112.40 is: 10,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,037.36 : 21,040.92 = 7,112.40 : x
  2. Step 2: Convert to fraction form
    14,037.36/21,040.92 = 7,112.40/x
  3. Step 3: Cross multiply
    14,037.36x = 21,040.92 × 7,112.40
  4. Step 4: Simplify right side
    14,037.36x = 149,651,439.41
  5. Step 5: Solve for x
    x = 149,651,439.41/14,037.36
  6. Step 6: Final answer
    x = 10,660.94

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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.