Home / 12,455.37-18,674.55-4,657.50

Finding the Fourth Proportional to 12,455.37, 18,674.55 and 4,657.50

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Solution

The fourth proportional to 12,455.37, 18,674.55 and 4,657.50 is: 6,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.37 : 18,674.55 = 4,657.50 : x
  2. Step 2: Convert to fraction form
    12,455.37/18,674.55 = 4,657.50/x
  3. Step 3: Cross multiply
    12,455.37x = 18,674.55 × 4,657.50
  4. Step 4: Simplify right side
    12,455.37x = 86,976,716.63
  5. Step 5: Solve for x
    x = 86,976,716.63/12,455.37
  6. Step 6: Final answer
    x = 6,983.07

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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.