Home / 18,740.09-25,856.79-11,661.50

Finding the Fourth Proportional to 18,740.09, 25,856.79 and 11,661.50

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Solution

The fourth proportional to 18,740.09, 25,856.79 and 11,661.50 is: 16,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.09 : 25,856.79 = 11,661.50 : x
  2. Step 2: Convert to fraction form
    18,740.09/25,856.79 = 11,661.50/x
  3. Step 3: Cross multiply
    18,740.09x = 25,856.79 × 11,661.50
  4. Step 4: Simplify right side
    18,740.09x = 301,528,827.30
  5. Step 5: Solve for x
    x = 301,528,827.30/18,740.09
  6. Step 6: Final answer
    x = 16,090.05

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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.