Home / 19,521.84-26,941.68-11,138.16

Finding the Fourth Proportional to 19,521.84, 26,941.68 and 11,138.16

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Solution

The fourth proportional to 19,521.84, 26,941.68 and 11,138.16 is: 15,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.84 : 26,941.68 = 11,138.16 : x
  2. Step 2: Convert to fraction form
    19,521.84/26,941.68 = 11,138.16/x
  3. Step 3: Cross multiply
    19,521.84x = 26,941.68 × 11,138.16
  4. Step 4: Simplify right side
    19,521.84x = 300,080,742.51
  5. Step 5: Solve for x
    x = 300,080,742.51/19,521.84
  6. Step 6: Final answer
    x = 15,371.54

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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.