Home / 18,740.91-28,111.37-5,602.51

Finding the Fourth Proportional to 18,740.91, 28,111.37 and 5,602.51

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Solution

The fourth proportional to 18,740.91, 28,111.37 and 5,602.51 is: 8,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.91 : 28,111.37 = 5,602.51 : x
  2. Step 2: Convert to fraction form
    18,740.91/28,111.37 = 5,602.51/x
  3. Step 3: Cross multiply
    18,740.91x = 28,111.37 × 5,602.51
  4. Step 4: Simplify right side
    18,740.91x = 157,494,231.54
  5. Step 5: Solve for x
    x = 157,494,231.54/18,740.91
  6. Step 6: Final answer
    x = 8,403.77

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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.