Home / 18,686.09-25,760.01-14,700.28

Finding the Fourth Proportional to 18,686.09, 25,760.01 and 14,700.28

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Solution

The fourth proportional to 18,686.09, 25,760.01 and 14,700.28 is: 20,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.09 : 25,760.01 = 14,700.28 : x
  2. Step 2: Convert to fraction form
    18,686.09/25,760.01 = 14,700.28/x
  3. Step 3: Cross multiply
    18,686.09x = 25,760.01 × 14,700.28
  4. Step 4: Simplify right side
    18,686.09x = 378,679,359.80
  5. Step 5: Solve for x
    x = 378,679,359.80/18,686.09
  6. Step 6: Final answer
    x = 20,265.31

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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.