Home / 19,518.74-26,939.02-11,969.24

Finding the Fourth Proportional to 19,518.74, 26,939.02 and 11,969.24

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Solution

The fourth proportional to 19,518.74, 26,939.02 and 11,969.24 is: 16,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.74 : 26,939.02 = 11,969.24 : x
  2. Step 2: Convert to fraction form
    19,518.74/26,939.02 = 11,969.24/x
  3. Step 3: Cross multiply
    19,518.74x = 26,939.02 × 11,969.24
  4. Step 4: Simplify right side
    19,518.74x = 322,439,595.74
  5. Step 5: Solve for x
    x = 322,439,595.74/19,518.74
  6. Step 6: Final answer
    x = 16,519.49

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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.