Home / 12,807.95-19,220.58-4,488.03

Finding the Fourth Proportional to 12,807.95, 19,220.58 and 4,488.03

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Solution

The fourth proportional to 12,807.95, 19,220.58 and 4,488.03 is: 6,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.95 : 19,220.58 = 4,488.03 : x
  2. Step 2: Convert to fraction form
    12,807.95/19,220.58 = 4,488.03/x
  3. Step 3: Cross multiply
    12,807.95x = 19,220.58 × 4,488.03
  4. Step 4: Simplify right side
    12,807.95x = 86,262,539.66
  5. Step 5: Solve for x
    x = 86,262,539.66/12,807.95
  6. Step 6: Final answer
    x = 6,735.08

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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.