Home / 10,074.12-15,111.16-2,678.58

Finding the Fourth Proportional to 10,074.12, 15,111.16 and 2,678.58

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Solution

The fourth proportional to 10,074.12, 15,111.16 and 2,678.58 is: 4,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.12 : 15,111.16 = 2,678.58 : x
  2. Step 2: Convert to fraction form
    10,074.12/15,111.16 = 2,678.58/x
  3. Step 3: Cross multiply
    10,074.12x = 15,111.16 × 2,678.58
  4. Step 4: Simplify right side
    10,074.12x = 40,476,450.95
  5. Step 5: Solve for x
    x = 40,476,450.95/10,074.12
  6. Step 6: Final answer
    x = 4,017.86

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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.