Home / 19,665.02-27,140.50-11,169.26

Finding the Fourth Proportional to 19,665.02, 27,140.50 and 11,169.26

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Solution

The fourth proportional to 19,665.02, 27,140.50 and 11,169.26 is: 15,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.02 : 27,140.50 = 11,169.26 : x
  2. Step 2: Convert to fraction form
    19,665.02/27,140.50 = 11,169.26/x
  3. Step 3: Cross multiply
    19,665.02x = 27,140.50 × 11,169.26
  4. Step 4: Simplify right side
    19,665.02x = 303,139,137.40
  5. Step 5: Solve for x
    x = 303,139,137.40/19,665.02
  6. Step 6: Final answer
    x = 15,415.15

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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.