Home / 9,789.10-14,683.20-3,215.35

Finding the Fourth Proportional to 9,789.10, 14,683.20 and 3,215.35

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Solution

The fourth proportional to 9,789.10, 14,683.20 and 3,215.35 is: 4,822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.10 : 14,683.20 = 3,215.35 : x
  2. Step 2: Convert to fraction form
    9,789.10/14,683.20 = 3,215.35/x
  3. Step 3: Cross multiply
    9,789.10x = 14,683.20 × 3,215.35
  4. Step 4: Simplify right side
    9,789.10x = 47,211,559.87
  5. Step 5: Solve for x
    x = 47,211,559.87/9,789.10
  6. Step 6: Final answer
    x = 4,822.87

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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.