Home / 12,820.58-19,230.73-4,055.50

Finding the Fourth Proportional to 12,820.58, 19,230.73 and 4,055.50

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Solution

The fourth proportional to 12,820.58, 19,230.73 and 4,055.50 is: 6,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.58 : 19,230.73 = 4,055.50 : x
  2. Step 2: Convert to fraction form
    12,820.58/19,230.73 = 4,055.50/x
  3. Step 3: Cross multiply
    12,820.58x = 19,230.73 × 4,055.50
  4. Step 4: Simplify right side
    12,820.58x = 77,990,225.52
  5. Step 5: Solve for x
    x = 77,990,225.52/12,820.58
  6. Step 6: Final answer
    x = 6,083.21

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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.