Home / 12,900.36-19,357.84-5,504.12

Finding the Fourth Proportional to 12,900.36, 19,357.84 and 5,504.12

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Solution

The fourth proportional to 12,900.36, 19,357.84 and 5,504.12 is: 8,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.36 : 19,357.84 = 5,504.12 : x
  2. Step 2: Convert to fraction form
    12,900.36/19,357.84 = 5,504.12/x
  3. Step 3: Cross multiply
    12,900.36x = 19,357.84 × 5,504.12
  4. Step 4: Simplify right side
    12,900.36x = 106,547,874.30
  5. Step 5: Solve for x
    x = 106,547,874.30/12,900.36
  6. Step 6: Final answer
    x = 8,259.29

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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.