Home / 18,860.64-26,020.62-11,687.28

Finding the Fourth Proportional to 18,860.64, 26,020.62 and 11,687.28

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Solution

The fourth proportional to 18,860.64, 26,020.62 and 11,687.28 is: 16,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.64 : 26,020.62 = 11,687.28 : x
  2. Step 2: Convert to fraction form
    18,860.64/26,020.62 = 11,687.28/x
  3. Step 3: Cross multiply
    18,860.64x = 26,020.62 × 11,687.28
  4. Step 4: Simplify right side
    18,860.64x = 304,110,271.71
  5. Step 5: Solve for x
    x = 304,110,271.71/18,860.64
  6. Step 6: Final answer
    x = 16,124.07

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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.