Home / 15,541.94-21,450.67-9,168.14

Finding the Fourth Proportional to 15,541.94, 21,450.67 and 9,168.14

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Solution

The fourth proportional to 15,541.94, 21,450.67 and 9,168.14 is: 12,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.94 : 21,450.67 = 9,168.14 : x
  2. Step 2: Convert to fraction form
    15,541.94/21,450.67 = 9,168.14/x
  3. Step 3: Cross multiply
    15,541.94x = 21,450.67 × 9,168.14
  4. Step 4: Simplify right side
    15,541.94x = 196,662,776.36
  5. Step 5: Solve for x
    x = 196,662,776.36/15,541.94
  6. Step 6: Final answer
    x = 12,653.69

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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.