Home / 15,274.29-21,051.72-13,144.53

Finding the Fourth Proportional to 15,274.29, 21,051.72 and 13,144.53

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Solution

The fourth proportional to 15,274.29, 21,051.72 and 13,144.53 is: 18,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.29 : 21,051.72 = 13,144.53 : x
  2. Step 2: Convert to fraction form
    15,274.29/21,051.72 = 13,144.53/x
  3. Step 3: Cross multiply
    15,274.29x = 21,051.72 × 13,144.53
  4. Step 4: Simplify right side
    15,274.29x = 276,714,965.09
  5. Step 5: Solve for x
    x = 276,714,965.09/15,274.29
  6. Step 6: Final answer
    x = 18,116.39

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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.