Home / 18,743.09-25,864.70-10,785.60

Finding the Fourth Proportional to 18,743.09, 25,864.70 and 10,785.60

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Solution

The fourth proportional to 18,743.09, 25,864.70 and 10,785.60 is: 14,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.09 : 25,864.70 = 10,785.60 : x
  2. Step 2: Convert to fraction form
    18,743.09/25,864.70 = 10,785.60/x
  3. Step 3: Cross multiply
    18,743.09x = 25,864.70 × 10,785.60
  4. Step 4: Simplify right side
    18,743.09x = 278,966,308.32
  5. Step 5: Solve for x
    x = 278,966,308.32/18,743.09
  6. Step 6: Final answer
    x = 14,883.69

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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.