Home / 13,924.55-19,216.77-7,876.28

Finding the Fourth Proportional to 13,924.55, 19,216.77 and 7,876.28

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Solution

The fourth proportional to 13,924.55, 19,216.77 and 7,876.28 is: 10,869.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.55 : 19,216.77 = 7,876.28 : x
  2. Step 2: Convert to fraction form
    13,924.55/19,216.77 = 7,876.28/x
  3. Step 3: Cross multiply
    13,924.55x = 19,216.77 × 7,876.28
  4. Step 4: Simplify right side
    13,924.55x = 151,356,661.22
  5. Step 5: Solve for x
    x = 151,356,661.22/13,924.55
  6. Step 6: Final answer
    x = 10,869.77

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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.