Home / 18,336.87-27,501.80-5,188.77

Finding the Fourth Proportional to 18,336.87, 27,501.80 and 5,188.77

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Solution

The fourth proportional to 18,336.87, 27,501.80 and 5,188.77 is: 7,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.87 : 27,501.80 = 5,188.77 : x
  2. Step 2: Convert to fraction form
    18,336.87/27,501.80 = 5,188.77/x
  3. Step 3: Cross multiply
    18,336.87x = 27,501.80 × 5,188.77
  4. Step 4: Simplify right side
    18,336.87x = 142,700,488.84
  5. Step 5: Solve for x
    x = 142,700,488.84/18,336.87
  6. Step 6: Final answer
    x = 7,782.16

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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.