Home / 18,813.30-25,961.31-10,430.34

Finding the Fourth Proportional to 18,813.30, 25,961.31 and 10,430.34

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Solution

The fourth proportional to 18,813.30, 25,961.31 and 10,430.34 is: 14,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.30 : 25,961.31 = 10,430.34 : x
  2. Step 2: Convert to fraction form
    18,813.30/25,961.31 = 10,430.34/x
  3. Step 3: Cross multiply
    18,813.30x = 25,961.31 × 10,430.34
  4. Step 4: Simplify right side
    18,813.30x = 270,785,290.15
  5. Step 5: Solve for x
    x = 270,785,290.15/18,813.30
  6. Step 6: Final answer
    x = 14,393.29

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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.