Home / 13,709.52-20,565.90-8,783.10

Finding the Fourth Proportional to 13,709.52, 20,565.90 and 8,783.10

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Solution

The fourth proportional to 13,709.52, 20,565.90 and 8,783.10 is: 13,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.52 : 20,565.90 = 8,783.10 : x
  2. Step 2: Convert to fraction form
    13,709.52/20,565.90 = 8,783.10/x
  3. Step 3: Cross multiply
    13,709.52x = 20,565.90 × 8,783.10
  4. Step 4: Simplify right side
    13,709.52x = 180,632,356.29
  5. Step 5: Solve for x
    x = 180,632,356.29/13,709.52
  6. Step 6: Final answer
    x = 13,175.69

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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.