Home / 15,194.81-20,970.97-10,959.91

Finding the Fourth Proportional to 15,194.81, 20,970.97 and 10,959.91

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Solution

The fourth proportional to 15,194.81, 20,970.97 and 10,959.91 is: 15,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.81 : 20,970.97 = 10,959.91 : x
  2. Step 2: Convert to fraction form
    15,194.81/20,970.97 = 10,959.91/x
  3. Step 3: Cross multiply
    15,194.81x = 20,970.97 × 10,959.91
  4. Step 4: Simplify right side
    15,194.81x = 229,839,863.99
  5. Step 5: Solve for x
    x = 229,839,863.99/15,194.81
  6. Step 6: Final answer
    x = 15,126.21

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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.