Home / 13,935.53-19,230.40-7,647.77

Finding the Fourth Proportional to 13,935.53, 19,230.40 and 7,647.77

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Solution

The fourth proportional to 13,935.53, 19,230.40 and 7,647.77 is: 10,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.53 : 19,230.40 = 7,647.77 : x
  2. Step 2: Convert to fraction form
    13,935.53/19,230.40 = 7,647.77/x
  3. Step 3: Cross multiply
    13,935.53x = 19,230.40 × 7,647.77
  4. Step 4: Simplify right side
    13,935.53x = 147,069,676.21
  5. Step 5: Solve for x
    x = 147,069,676.21/13,935.53
  6. Step 6: Final answer
    x = 10,553.58

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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.