Home / 13,935.52-19,231.44-7,648.32

Finding the Fourth Proportional to 13,935.52, 19,231.44 and 7,648.32

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Solution

The fourth proportional to 13,935.52, 19,231.44 and 7,648.32 is: 10,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.52 : 19,231.44 = 7,648.32 : x
  2. Step 2: Convert to fraction form
    13,935.52/19,231.44 = 7,648.32/x
  3. Step 3: Cross multiply
    13,935.52x = 19,231.44 × 7,648.32
  4. Step 4: Simplify right side
    13,935.52x = 147,088,207.18
  5. Step 5: Solve for x
    x = 147,088,207.18/13,935.52
  6. Step 6: Final answer
    x = 10,554.91

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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.