Home / 12,900.05-19,325.23-10,947.41

Finding the Fourth Proportional to 12,900.05, 19,325.23 and 10,947.41

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Solution

The fourth proportional to 12,900.05, 19,325.23 and 10,947.41 is: 16,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.05 : 19,325.23 = 10,947.41 : x
  2. Step 2: Convert to fraction form
    12,900.05/19,325.23 = 10,947.41/x
  3. Step 3: Cross multiply
    12,900.05x = 19,325.23 × 10,947.41
  4. Step 4: Simplify right side
    12,900.05x = 211,561,216.15
  5. Step 5: Solve for x
    x = 211,561,216.15/12,900.05
  6. Step 6: Final answer
    x = 16,400.03

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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.