Home / 18,740.16-28,051.92-11,800.08

Finding the Fourth Proportional to 18,740.16, 28,051.92 and 11,800.08

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Solution

The fourth proportional to 18,740.16, 28,051.92 and 11,800.08 is: 17,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.16 : 28,051.92 = 11,800.08 : x
  2. Step 2: Convert to fraction form
    18,740.16/28,051.92 = 11,800.08/x
  3. Step 3: Cross multiply
    18,740.16x = 28,051.92 × 11,800.08
  4. Step 4: Simplify right side
    18,740.16x = 331,014,900.15
  5. Step 5: Solve for x
    x = 331,014,900.15/18,740.16
  6. Step 6: Final answer
    x = 17,663.40

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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.