Home / 12,800.53-19,200.75-5,783.01

Finding the Fourth Proportional to 12,800.53, 19,200.75 and 5,783.01

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Solution

The fourth proportional to 12,800.53, 19,200.75 and 5,783.01 is: 8,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.53 : 19,200.75 = 5,783.01 : x
  2. Step 2: Convert to fraction form
    12,800.53/19,200.75 = 5,783.01/x
  3. Step 3: Cross multiply
    12,800.53x = 19,200.75 × 5,783.01
  4. Step 4: Simplify right side
    12,800.53x = 111,038,129.26
  5. Step 5: Solve for x
    x = 111,038,129.26/12,800.53
  6. Step 6: Final answer
    x = 8,674.49

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Similar ratio
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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.