Home / 12,409.15-18,600.36-5,009.80

Finding the Fourth Proportional to 12,409.15, 18,600.36 and 5,009.80

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Solution

The fourth proportional to 12,409.15, 18,600.36 and 5,009.80 is: 7,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.15 : 18,600.36 = 5,009.80 : x
  2. Step 2: Convert to fraction form
    12,409.15/18,600.36 = 5,009.80/x
  3. Step 3: Cross multiply
    12,409.15x = 18,600.36 × 5,009.80
  4. Step 4: Simplify right side
    12,409.15x = 93,184,083.53
  5. Step 5: Solve for x
    x = 93,184,083.53/12,409.15
  6. Step 6: Final answer
    x = 7,509.30

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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.