Home / 18,926.19-26,116.88-10,966.99

Finding the Fourth Proportional to 18,926.19, 26,116.88 and 10,966.99

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Solution

The fourth proportional to 18,926.19, 26,116.88 and 10,966.99 is: 15,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.19 : 26,116.88 = 10,966.99 : x
  2. Step 2: Convert to fraction form
    18,926.19/26,116.88 = 10,966.99/x
  3. Step 3: Cross multiply
    18,926.19x = 26,116.88 × 10,966.99
  4. Step 4: Simplify right side
    18,926.19x = 286,423,561.79
  5. Step 5: Solve for x
    x = 286,423,561.79/18,926.19
  6. Step 6: Final answer
    x = 15,133.71

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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.