Home / 18,816.39-25,966.91-10,319.28

Finding the Fourth Proportional to 18,816.39, 25,966.91 and 10,319.28

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Solution

The fourth proportional to 18,816.39, 25,966.91 and 10,319.28 is: 14,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.39 : 25,966.91 = 10,319.28 : x
  2. Step 2: Convert to fraction form
    18,816.39/25,966.91 = 10,319.28/x
  3. Step 3: Cross multiply
    18,816.39x = 25,966.91 × 10,319.28
  4. Step 4: Simplify right side
    18,816.39x = 267,959,815.02
  5. Step 5: Solve for x
    x = 267,959,815.02/18,816.39
  6. Step 6: Final answer
    x = 14,240.77

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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.