Home / 13,051.04-19,578-4,283.60

Finding the Fourth Proportional to 13,051.04, 19,578 and 4,283.60

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Solution

The fourth proportional to 13,051.04, 19,578 and 4,283.60 is: 6,425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.04 : 19,578 = 4,283.60 : x
  2. Step 2: Convert to fraction form
    13,051.04/19,578 = 4,283.60/x
  3. Step 3: Cross multiply
    13,051.04x = 19,578 × 4,283.60
  4. Step 4: Simplify right side
    13,051.04x = 83,864,320.80
  5. Step 5: Solve for x
    x = 83,864,320.80/13,051.04
  6. Step 6: Final answer
    x = 6,425.87

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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.