Home / 9,918.76-13,688.96-6,336.99

Finding the Fourth Proportional to 9,918.76, 13,688.96 and 6,336.99

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Solution

The fourth proportional to 9,918.76, 13,688.96 and 6,336.99 is: 8,745.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.76 : 13,688.96 = 6,336.99 : x
  2. Step 2: Convert to fraction form
    9,918.76/13,688.96 = 6,336.99/x
  3. Step 3: Cross multiply
    9,918.76x = 13,688.96 × 6,336.99
  4. Step 4: Simplify right side
    9,918.76x = 86,746,802.63
  5. Step 5: Solve for x
    x = 86,746,802.63/9,918.76
  6. Step 6: Final answer
    x = 8,745.73

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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.