Home / 12,910.08-19,342.08-6,758.40

Finding the Fourth Proportional to 12,910.08, 19,342.08 and 6,758.40

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Solution

The fourth proportional to 12,910.08, 19,342.08 and 6,758.40 is: 10,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.08 : 19,342.08 = 6,758.40 : x
  2. Step 2: Convert to fraction form
    12,910.08/19,342.08 = 6,758.40/x
  3. Step 3: Cross multiply
    12,910.08x = 19,342.08 × 6,758.40
  4. Step 4: Simplify right side
    12,910.08x = 130,721,513.47
  5. Step 5: Solve for x
    x = 130,721,513.47/12,910.08
  6. Step 6: Final answer
    x = 10,125.54

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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.