Home / 19,742.79-27,226.20-12,926.64

Finding the Fourth Proportional to 19,742.79, 27,226.20 and 12,926.64

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Solution

The fourth proportional to 19,742.79, 27,226.20 and 12,926.64 is: 17,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.79 : 27,226.20 = 12,926.64 : x
  2. Step 2: Convert to fraction form
    19,742.79/27,226.20 = 12,926.64/x
  3. Step 3: Cross multiply
    19,742.79x = 27,226.20 × 12,926.64
  4. Step 4: Simplify right side
    19,742.79x = 351,943,085.20
  5. Step 5: Solve for x
    x = 351,943,085.20/19,742.79
  6. Step 6: Final answer
    x = 17,826.42

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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.