Home / 19,900.14-27,461.61-10,947.64

Finding the Fourth Proportional to 19,900.14, 27,461.61 and 10,947.64

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Solution

The fourth proportional to 19,900.14, 27,461.61 and 10,947.64 is: 15,107.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.14 : 27,461.61 = 10,947.64 : x
  2. Step 2: Convert to fraction form
    19,900.14/27,461.61 = 10,947.64/x
  3. Step 3: Cross multiply
    19,900.14x = 27,461.61 × 10,947.64
  4. Step 4: Simplify right side
    19,900.14x = 300,639,820.10
  5. Step 5: Solve for x
    x = 300,639,820.10/19,900.14
  6. Step 6: Final answer
    x = 15,107.42

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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.