Home / 14,382.89-21,570.07-6,480.84

Finding the Fourth Proportional to 14,382.89, 21,570.07 and 6,480.84

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Solution

The fourth proportional to 14,382.89, 21,570.07 and 6,480.84 is: 9,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.89 : 21,570.07 = 6,480.84 : x
  2. Step 2: Convert to fraction form
    14,382.89/21,570.07 = 6,480.84/x
  3. Step 3: Cross multiply
    14,382.89x = 21,570.07 × 6,480.84
  4. Step 4: Simplify right side
    14,382.89x = 139,792,172.46
  5. Step 5: Solve for x
    x = 139,792,172.46/14,382.89
  6. Step 6: Final answer
    x = 9,719.34

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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.