Home / 12,945.23-19,389.38-10,698.60

Finding the Fourth Proportional to 12,945.23, 19,389.38 and 10,698.60

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Solution

The fourth proportional to 12,945.23, 19,389.38 and 10,698.60 is: 16,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.23 : 19,389.38 = 10,698.60 : x
  2. Step 2: Convert to fraction form
    12,945.23/19,389.38 = 10,698.60/x
  3. Step 3: Cross multiply
    12,945.23x = 19,389.38 × 10,698.60
  4. Step 4: Simplify right side
    12,945.23x = 207,439,247.61
  5. Step 5: Solve for x
    x = 207,439,247.61/12,945.23
  6. Step 6: Final answer
    x = 16,024.38

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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.