Home / 18,385.57-25,371.34-10,427.62

Finding the Fourth Proportional to 18,385.57, 25,371.34 and 10,427.62

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Solution

The fourth proportional to 18,385.57, 25,371.34 and 10,427.62 is: 14,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.57 : 25,371.34 = 10,427.62 : x
  2. Step 2: Convert to fraction form
    18,385.57/25,371.34 = 10,427.62/x
  3. Step 3: Cross multiply
    18,385.57x = 25,371.34 × 10,427.62
  4. Step 4: Simplify right side
    18,385.57x = 264,562,692.41
  5. Step 5: Solve for x
    x = 264,562,692.41/18,385.57
  6. Step 6: Final answer
    x = 14,389.69

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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.