Home / 18,338.63-25,300.45-10,785.35

Finding the Fourth Proportional to 18,338.63, 25,300.45 and 10,785.35

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Solution

The fourth proportional to 18,338.63, 25,300.45 and 10,785.35 is: 14,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.63 : 25,300.45 = 10,785.35 : x
  2. Step 2: Convert to fraction form
    18,338.63/25,300.45 = 10,785.35/x
  3. Step 3: Cross multiply
    18,338.63x = 25,300.45 × 10,785.35
  4. Step 4: Simplify right side
    18,338.63x = 272,874,208.41
  5. Step 5: Solve for x
    x = 272,874,208.41/18,338.63
  6. Step 6: Final answer
    x = 14,879.75

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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.