Home / 18,935.70-26,133.21-11,384.49

Finding the Fourth Proportional to 18,935.70, 26,133.21 and 11,384.49

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Solution

The fourth proportional to 18,935.70, 26,133.21 and 11,384.49 is: 15,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.70 : 26,133.21 = 11,384.49 : x
  2. Step 2: Convert to fraction form
    18,935.70/26,133.21 = 11,384.49/x
  3. Step 3: Cross multiply
    18,935.70x = 26,133.21 × 11,384.49
  4. Step 4: Simplify right side
    18,935.70x = 297,513,267.91
  5. Step 5: Solve for x
    x = 297,513,267.91/18,935.70
  6. Step 6: Final answer
    x = 15,711.76

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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.