Home / 14,101.51-19,485.75-13,418.28

Finding the Fourth Proportional to 14,101.51, 19,485.75 and 13,418.28

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Solution

The fourth proportional to 14,101.51, 19,485.75 and 13,418.28 is: 18,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.51 : 19,485.75 = 13,418.28 : x
  2. Step 2: Convert to fraction form
    14,101.51/19,485.75 = 13,418.28/x
  3. Step 3: Cross multiply
    14,101.51x = 19,485.75 × 13,418.28
  4. Step 4: Simplify right side
    14,101.51x = 261,465,249.51
  5. Step 5: Solve for x
    x = 261,465,249.51/14,101.51
  6. Step 6: Final answer
    x = 18,541.65

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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.