Home / 12,406.80-18,568.61-10,185.51

Finding the Fourth Proportional to 12,406.80, 18,568.61 and 10,185.51

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Solution

The fourth proportional to 12,406.80, 18,568.61 and 10,185.51 is: 15,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.80 : 18,568.61 = 10,185.51 : x
  2. Step 2: Convert to fraction form
    12,406.80/18,568.61 = 10,185.51/x
  3. Step 3: Cross multiply
    12,406.80x = 18,568.61 × 10,185.51
  4. Step 4: Simplify right side
    12,406.80x = 189,130,762.84
  5. Step 5: Solve for x
    x = 189,130,762.84/12,406.80
  6. Step 6: Final answer
    x = 15,244.12

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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.