Home / 18,675.87-25,772.37-10,178.06

Finding the Fourth Proportional to 18,675.87, 25,772.37 and 10,178.06

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Solution

The fourth proportional to 18,675.87, 25,772.37 and 10,178.06 is: 14,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.87 : 25,772.37 = 10,178.06 : x
  2. Step 2: Convert to fraction form
    18,675.87/25,772.37 = 10,178.06/x
  3. Step 3: Cross multiply
    18,675.87x = 25,772.37 × 10,178.06
  4. Step 4: Simplify right side
    18,675.87x = 262,312,599.34
  5. Step 5: Solve for x
    x = 262,312,599.34/18,675.87
  6. Step 6: Final answer
    x = 14,045.54

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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.