Home / 18,933.70-26,130.45-11,382.49

Finding the Fourth Proportional to 18,933.70, 26,130.45 and 11,382.49

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Solution

The fourth proportional to 18,933.70, 26,130.45 and 11,382.49 is: 15,709.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.70 : 26,130.45 = 11,382.49 : x
  2. Step 2: Convert to fraction form
    18,933.70/26,130.45 = 11,382.49/x
  3. Step 3: Cross multiply
    18,933.70x = 26,130.45 × 11,382.49
  4. Step 4: Simplify right side
    18,933.70x = 297,429,585.82
  5. Step 5: Solve for x
    x = 297,429,585.82/18,933.70
  6. Step 6: Final answer
    x = 15,709.00

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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.