Home / 18,412.13-25,407.60-10,858.77

Finding the Fourth Proportional to 18,412.13, 25,407.60 and 10,858.77

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Solution

The fourth proportional to 18,412.13, 25,407.60 and 10,858.77 is: 14,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.13 : 25,407.60 = 10,858.77 : x
  2. Step 2: Convert to fraction form
    18,412.13/25,407.60 = 10,858.77/x
  3. Step 3: Cross multiply
    18,412.13x = 25,407.60 × 10,858.77
  4. Step 4: Simplify right side
    18,412.13x = 275,895,284.65
  5. Step 5: Solve for x
    x = 275,895,284.65/18,412.13
  6. Step 6: Final answer
    x = 14,984.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.