Home / 18,585.40-25,647.86-10,087.51

Finding the Fourth Proportional to 18,585.40, 25,647.86 and 10,087.51

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Solution

The fourth proportional to 18,585.40, 25,647.86 and 10,087.51 is: 13,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.40 : 25,647.86 = 10,087.51 : x
  2. Step 2: Convert to fraction form
    18,585.40/25,647.86 = 10,087.51/x
  3. Step 3: Cross multiply
    18,585.40x = 25,647.86 × 10,087.51
  4. Step 4: Simplify right side
    18,585.40x = 258,722,993.79
  5. Step 5: Solve for x
    x = 258,722,993.79/18,585.40
  6. Step 6: Final answer
    x = 13,920.77

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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.