Home / 10,080.48-13,911.92-5,605.08

Finding the Fourth Proportional to 10,080.48, 13,911.92 and 5,605.08

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Solution

The fourth proportional to 10,080.48, 13,911.92 and 5,605.08 is: 7,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.48 : 13,911.92 = 5,605.08 : x
  2. Step 2: Convert to fraction form
    10,080.48/13,911.92 = 5,605.08/x
  3. Step 3: Cross multiply
    10,080.48x = 13,911.92 × 5,605.08
  4. Step 4: Simplify right side
    10,080.48x = 77,977,424.55
  5. Step 5: Solve for x
    x = 77,977,424.55/10,080.48
  6. Step 6: Final answer
    x = 7,735.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.