Home / 12,698.04-19,047.12-8,309.44

Finding the Fourth Proportional to 12,698.04, 19,047.12 and 8,309.44

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Solution

The fourth proportional to 12,698.04, 19,047.12 and 8,309.44 is: 12,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.04 : 19,047.12 = 8,309.44 : x
  2. Step 2: Convert to fraction form
    12,698.04/19,047.12 = 8,309.44/x
  3. Step 3: Cross multiply
    12,698.04x = 19,047.12 × 8,309.44
  4. Step 4: Simplify right side
    12,698.04x = 158,270,900.81
  5. Step 5: Solve for x
    x = 158,270,900.81/12,698.04
  6. Step 6: Final answer
    x = 12,464.20

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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.