Home / 12,804.48-19,208.88-4,039.20

Finding the Fourth Proportional to 12,804.48, 19,208.88 and 4,039.20

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Solution

The fourth proportional to 12,804.48, 19,208.88 and 4,039.20 is: 6,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.48 : 19,208.88 = 4,039.20 : x
  2. Step 2: Convert to fraction form
    12,804.48/19,208.88 = 4,039.20/x
  3. Step 3: Cross multiply
    12,804.48x = 19,208.88 × 4,039.20
  4. Step 4: Simplify right side
    12,804.48x = 77,588,508.10
  5. Step 5: Solve for x
    x = 77,588,508.10/12,804.48
  6. Step 6: Final answer
    x = 6,059.48

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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.