Home / 14,782.56-20,404.08-8,812.32

Finding the Fourth Proportional to 14,782.56, 20,404.08 and 8,812.32

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Solution

The fourth proportional to 14,782.56, 20,404.08 and 8,812.32 is: 12,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.56 : 20,404.08 = 8,812.32 : x
  2. Step 2: Convert to fraction form
    14,782.56/20,404.08 = 8,812.32/x
  3. Step 3: Cross multiply
    14,782.56x = 20,404.08 × 8,812.32
  4. Step 4: Simplify right side
    14,782.56x = 179,807,282.27
  5. Step 5: Solve for x
    x = 179,807,282.27/14,782.56
  6. Step 6: Final answer
    x = 12,163.47

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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.