Home / 18,839.63-25,999.90-10,456.13

Finding the Fourth Proportional to 18,839.63, 25,999.90 and 10,456.13

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Solution

The fourth proportional to 18,839.63, 25,999.90 and 10,456.13 is: 14,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.63 : 25,999.90 = 10,456.13 : x
  2. Step 2: Convert to fraction form
    18,839.63/25,999.90 = 10,456.13/x
  3. Step 3: Cross multiply
    18,839.63x = 25,999.90 × 10,456.13
  4. Step 4: Simplify right side
    18,839.63x = 271,858,334.39
  5. Step 5: Solve for x
    x = 271,858,334.39/18,839.63
  6. Step 6: Final answer
    x = 14,430.13

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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.