Home / 13,280.78-19,910.91-6,703.58

Finding the Fourth Proportional to 13,280.78, 19,910.91 and 6,703.58

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Solution

The fourth proportional to 13,280.78, 19,910.91 and 6,703.58 is: 10,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.78 : 19,910.91 = 6,703.58 : x
  2. Step 2: Convert to fraction form
    13,280.78/19,910.91 = 6,703.58/x
  3. Step 3: Cross multiply
    13,280.78x = 19,910.91 × 6,703.58
  4. Step 4: Simplify right side
    13,280.78x = 133,474,378.06
  5. Step 5: Solve for x
    x = 133,474,378.06/13,280.78
  6. Step 6: Final answer
    x = 10,050.19

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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.