Home / 12,748.93-19,107.16-7,205.36

Finding the Fourth Proportional to 12,748.93, 19,107.16 and 7,205.36

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Solution

The fourth proportional to 12,748.93, 19,107.16 and 7,205.36 is: 10,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.93 : 19,107.16 = 7,205.36 : x
  2. Step 2: Convert to fraction form
    12,748.93/19,107.16 = 7,205.36/x
  3. Step 3: Cross multiply
    12,748.93x = 19,107.16 × 7,205.36
  4. Step 4: Simplify right side
    12,748.93x = 137,673,966.38
  5. Step 5: Solve for x
    x = 137,673,966.38/12,748.93
  6. Step 6: Final answer
    x = 10,798.87

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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.