Home / 12,089.08-18,138.48-4,303.36

Finding the Fourth Proportional to 12,089.08, 18,138.48 and 4,303.36

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Solution

The fourth proportional to 12,089.08, 18,138.48 and 4,303.36 is: 6,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.08 : 18,138.48 = 4,303.36 : x
  2. Step 2: Convert to fraction form
    12,089.08/18,138.48 = 4,303.36/x
  3. Step 3: Cross multiply
    12,089.08x = 18,138.48 × 4,303.36
  4. Step 4: Simplify right side
    12,089.08x = 78,056,409.29
  5. Step 5: Solve for x
    x = 78,056,409.29/12,089.08
  6. Step 6: Final answer
    x = 6,456.77

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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.