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Finding the Fourth Proportional to 12,808.80, 19,206.40 and 4,041.44

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Solution

The fourth proportional to 12,808.80, 19,206.40 and 4,041.44 is: 6,060.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.80 : 19,206.40 = 4,041.44 : x
  2. Step 2: Convert to fraction form
    12,808.80/19,206.40 = 4,041.44/x
  3. Step 3: Cross multiply
    12,808.80x = 19,206.40 × 4,041.44
  4. Step 4: Simplify right side
    12,808.80x = 77,621,513.22
  5. Step 5: Solve for x
    x = 77,621,513.22/12,808.80
  6. Step 6: Final answer
    x = 6,060.01

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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.