Home / 16,865.40-25,297.14-5,178.58

Finding the Fourth Proportional to 16,865.40, 25,297.14 and 5,178.58

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Solution

The fourth proportional to 16,865.40, 25,297.14 and 5,178.58 is: 7,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.40 : 25,297.14 = 5,178.58 : x
  2. Step 2: Convert to fraction form
    16,865.40/25,297.14 = 5,178.58/x
  3. Step 3: Cross multiply
    16,865.40x = 25,297.14 × 5,178.58
  4. Step 4: Simplify right side
    16,865.40x = 131,003,263.26
  5. Step 5: Solve for x
    x = 131,003,263.26/16,865.40
  6. Step 6: Final answer
    x = 7,767.58

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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.