Home / 19,199.74-26,487.82-12,742.42

Finding the Fourth Proportional to 19,199.74, 26,487.82 and 12,742.42

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Solution

The fourth proportional to 19,199.74, 26,487.82 and 12,742.42 is: 17,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.74 : 26,487.82 = 12,742.42 : x
  2. Step 2: Convert to fraction form
    19,199.74/26,487.82 = 12,742.42/x
  3. Step 3: Cross multiply
    19,199.74x = 26,487.82 × 12,742.42
  4. Step 4: Simplify right side
    19,199.74x = 337,518,927.32
  5. Step 5: Solve for x
    x = 337,518,927.32/19,199.74
  6. Step 6: Final answer
    x = 17,579.35

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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.