Home / 9,815.81-14,721.60-3,240.44

Finding the Fourth Proportional to 9,815.81, 14,721.60 and 3,240.44

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Solution

The fourth proportional to 9,815.81, 14,721.60 and 3,240.44 is: 4,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.81 : 14,721.60 = 3,240.44 : x
  2. Step 2: Convert to fraction form
    9,815.81/14,721.60 = 3,240.44/x
  3. Step 3: Cross multiply
    9,815.81x = 14,721.60 × 3,240.44
  4. Step 4: Simplify right side
    9,815.81x = 47,704,461.50
  5. Step 5: Solve for x
    x = 47,704,461.50/9,815.81
  6. Step 6: Final answer
    x = 4,859.96

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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.