Home / 15,908.49-21,956.94-9,194.40

Finding the Fourth Proportional to 15,908.49, 21,956.94 and 9,194.40

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Solution

The fourth proportional to 15,908.49, 21,956.94 and 9,194.40 is: 12,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.49 : 21,956.94 = 9,194.40 : x
  2. Step 2: Convert to fraction form
    15,908.49/21,956.94 = 9,194.40/x
  3. Step 3: Cross multiply
    15,908.49x = 21,956.94 × 9,194.40
  4. Step 4: Simplify right side
    15,908.49x = 201,880,889.14
  5. Step 5: Solve for x
    x = 201,880,889.14/15,908.49
  6. Step 6: Final answer
    x = 12,690.14

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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.