Home / 19,401.78-26,776.67-10,788.82

Finding the Fourth Proportional to 19,401.78, 26,776.67 and 10,788.82

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Solution

The fourth proportional to 19,401.78, 26,776.67 and 10,788.82 is: 14,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.78 : 26,776.67 = 10,788.82 : x
  2. Step 2: Convert to fraction form
    19,401.78/26,776.67 = 10,788.82/x
  3. Step 3: Cross multiply
    19,401.78x = 26,776.67 × 10,788.82
  4. Step 4: Simplify right side
    19,401.78x = 288,888,639.36
  5. Step 5: Solve for x
    x = 288,888,639.36/19,401.78
  6. Step 6: Final answer
    x = 14,889.80

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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.