Home / 18,710.86-28,066.32-5,563.36

Finding the Fourth Proportional to 18,710.86, 28,066.32 and 5,563.36

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Solution

The fourth proportional to 18,710.86, 28,066.32 and 5,563.36 is: 8,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.86 : 28,066.32 = 5,563.36 : x
  2. Step 2: Convert to fraction form
    18,710.86/28,066.32 = 5,563.36/x
  3. Step 3: Cross multiply
    18,710.86x = 28,066.32 × 5,563.36
  4. Step 4: Simplify right side
    18,710.86x = 156,143,042.04
  5. Step 5: Solve for x
    x = 156,143,042.04/18,710.86
  6. Step 6: Final answer
    x = 8,345.05

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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.