Home / 13,038.72-19,568.60-6,800.64

Finding the Fourth Proportional to 13,038.72, 19,568.60 and 6,800.64

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Solution

The fourth proportional to 13,038.72, 19,568.60 and 6,800.64 is: 10,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.72 : 19,568.60 = 6,800.64 : x
  2. Step 2: Convert to fraction form
    13,038.72/19,568.60 = 6,800.64/x
  3. Step 3: Cross multiply
    13,038.72x = 19,568.60 × 6,800.64
  4. Step 4: Simplify right side
    13,038.72x = 133,079,003.90
  5. Step 5: Solve for x
    x = 133,079,003.90/13,038.72
  6. Step 6: Final answer
    x = 10,206.45

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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.