Home / 13,148.12-19,722.30-4,383

Finding the Fourth Proportional to 13,148.12, 19,722.30 and 4,383

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Solution

The fourth proportional to 13,148.12, 19,722.30 and 4,383 is: 6,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.12 : 19,722.30 = 4,383 : x
  2. Step 2: Convert to fraction form
    13,148.12/19,722.30 = 4,383/x
  3. Step 3: Cross multiply
    13,148.12x = 19,722.30 × 4,383
  4. Step 4: Simplify right side
    13,148.12x = 86,442,840.90
  5. Step 5: Solve for x
    x = 86,442,840.90/13,148.12
  6. Step 6: Final answer
    x = 6,574.54

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1.5x scale

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.