Home / 18,815.04-25,963.56-10,431

Finding the Fourth Proportional to 18,815.04, 25,963.56 and 10,431

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Solution

The fourth proportional to 18,815.04, 25,963.56 and 10,431 is: 14,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.04 : 25,963.56 = 10,431 : x
  2. Step 2: Convert to fraction form
    18,815.04/25,963.56 = 10,431/x
  3. Step 3: Cross multiply
    18,815.04x = 25,963.56 × 10,431
  4. Step 4: Simplify right side
    18,815.04x = 270,825,894.36
  5. Step 5: Solve for x
    x = 270,825,894.36/18,815.04
  6. Step 6: Final answer
    x = 14,394.12

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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.