Home / 18,930.98-26,124.86-10,977.93

Finding the Fourth Proportional to 18,930.98, 26,124.86 and 10,977.93

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Solution

The fourth proportional to 18,930.98, 26,124.86 and 10,977.93 is: 15,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.98 : 26,124.86 = 10,977.93 : x
  2. Step 2: Convert to fraction form
    18,930.98/26,124.86 = 10,977.93/x
  3. Step 3: Cross multiply
    18,930.98x = 26,124.86 × 10,977.93
  4. Step 4: Simplify right side
    18,930.98x = 286,796,911.78
  5. Step 5: Solve for x
    x = 286,796,911.78/18,930.98
  6. Step 6: Final answer
    x = 15,149.61

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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.