Home / 12,800.32-19,188.08-6,563.28

Finding the Fourth Proportional to 12,800.32, 19,188.08 and 6,563.28

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Solution

The fourth proportional to 12,800.32, 19,188.08 and 6,563.28 is: 9,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.32 : 19,188.08 = 6,563.28 : x
  2. Step 2: Convert to fraction form
    12,800.32/19,188.08 = 6,563.28/x
  3. Step 3: Cross multiply
    12,800.32x = 19,188.08 × 6,563.28
  4. Step 4: Simplify right side
    12,800.32x = 125,936,741.70
  5. Step 5: Solve for x
    x = 125,936,741.70/12,800.32
  6. Step 6: Final answer
    x = 9,838.56

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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.