Home / 9,429.90-14,145.54-2,856.61

Finding the Fourth Proportional to 9,429.90, 14,145.54 and 2,856.61

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Solution

The fourth proportional to 9,429.90, 14,145.54 and 2,856.61 is: 4,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.90 : 14,145.54 = 2,856.61 : x
  2. Step 2: Convert to fraction form
    9,429.90/14,145.54 = 2,856.61/x
  3. Step 3: Cross multiply
    9,429.90x = 14,145.54 × 2,856.61
  4. Step 4: Simplify right side
    9,429.90x = 40,408,291.02
  5. Step 5: Solve for x
    x = 40,408,291.02/9,429.90
  6. Step 6: Final answer
    x = 4,285.12

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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.