Home / 18,770.50-25,903.29-10,388.26

Finding the Fourth Proportional to 18,770.50, 25,903.29 and 10,388.26

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Solution

The fourth proportional to 18,770.50, 25,903.29 and 10,388.26 is: 14,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.50 : 25,903.29 = 10,388.26 : x
  2. Step 2: Convert to fraction form
    18,770.50/25,903.29 = 10,388.26/x
  3. Step 3: Cross multiply
    18,770.50x = 25,903.29 × 10,388.26
  4. Step 4: Simplify right side
    18,770.50x = 269,090,111.38
  5. Step 5: Solve for x
    x = 269,090,111.38/18,770.50
  6. Step 6: Final answer
    x = 14,335.80

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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.