Home / 12,364.45-18,545.30-3,480.06

Finding the Fourth Proportional to 12,364.45, 18,545.30 and 3,480.06

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Solution

The fourth proportional to 12,364.45, 18,545.30 and 3,480.06 is: 5,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.45 : 18,545.30 = 3,480.06 : x
  2. Step 2: Convert to fraction form
    12,364.45/18,545.30 = 3,480.06/x
  3. Step 3: Cross multiply
    12,364.45x = 18,545.30 × 3,480.06
  4. Step 4: Simplify right side
    12,364.45x = 64,538,739.32
  5. Step 5: Solve for x
    x = 64,538,739.32/12,364.45
  6. Step 6: Final answer
    x = 5,219.70

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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.