Home / 12,986.58-19,482.47-3,629.28

Finding the Fourth Proportional to 12,986.58, 19,482.47 and 3,629.28

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Solution

The fourth proportional to 12,986.58, 19,482.47 and 3,629.28 is: 5,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986.58 : 19,482.47 = 3,629.28 : x
  2. Step 2: Convert to fraction form
    12,986.58/19,482.47 = 3,629.28/x
  3. Step 3: Cross multiply
    12,986.58x = 19,482.47 × 3,629.28
  4. Step 4: Simplify right side
    12,986.58x = 70,707,320.58
  5. Step 5: Solve for x
    x = 70,707,320.58/12,986.58
  6. Step 6: Final answer
    x = 5,444.65

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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.