Home / 9,792.09-14,688.47-3,218.78

Finding the Fourth Proportional to 9,792.09, 14,688.47 and 3,218.78

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Solution

The fourth proportional to 9,792.09, 14,688.47 and 3,218.78 is: 4,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.09 : 14,688.47 = 3,218.78 : x
  2. Step 2: Convert to fraction form
    9,792.09/14,688.47 = 3,218.78/x
  3. Step 3: Cross multiply
    9,792.09x = 14,688.47 × 3,218.78
  4. Step 4: Simplify right side
    9,792.09x = 47,278,953.47
  5. Step 5: Solve for x
    x = 47,278,953.47/9,792.09
  6. Step 6: Final answer
    x = 4,828.28

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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.