Home / 18,665.31-25,758.35-10,708.28

Finding the Fourth Proportional to 18,665.31, 25,758.35 and 10,708.28

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Solution

The fourth proportional to 18,665.31, 25,758.35 and 10,708.28 is: 14,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.31 : 25,758.35 = 10,708.28 : x
  2. Step 2: Convert to fraction form
    18,665.31/25,758.35 = 10,708.28/x
  3. Step 3: Cross multiply
    18,665.31x = 25,758.35 × 10,708.28
  4. Step 4: Simplify right side
    18,665.31x = 275,827,441.80
  5. Step 5: Solve for x
    x = 275,827,441.80/18,665.31
  6. Step 6: Final answer
    x = 14,777.54

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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.