Home / 12,945.39-19,389.62-10,698.76

Finding the Fourth Proportional to 12,945.39, 19,389.62 and 10,698.76

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Solution

The fourth proportional to 12,945.39, 19,389.62 and 10,698.76 is: 16,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.39 : 19,389.62 = 10,698.76 : x
  2. Step 2: Convert to fraction form
    12,945.39/19,389.62 = 10,698.76/x
  3. Step 3: Cross multiply
    12,945.39x = 19,389.62 × 10,698.76
  4. Step 4: Simplify right side
    12,945.39x = 207,444,890.87
  5. Step 5: Solve for x
    x = 207,444,890.87/12,945.39
  6. Step 6: Final answer
    x = 16,024.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.