Home / 7,015.23-10,521.71-2,855.07

Finding the Fourth Proportional to 7,015.23, 10,521.71 and 2,855.07

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Solution

The fourth proportional to 7,015.23, 10,521.71 and 2,855.07 is: 4,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.23 : 10,521.71 = 2,855.07 : x
  2. Step 2: Convert to fraction form
    7,015.23/10,521.71 = 2,855.07/x
  3. Step 3: Cross multiply
    7,015.23x = 10,521.71 × 2,855.07
  4. Step 4: Simplify right side
    7,015.23x = 30,040,204.29
  5. Step 5: Solve for x
    x = 30,040,204.29/7,015.23
  6. Step 6: Final answer
    x = 4,282.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.