Home / 14,728.80-20,332.32-8,762.55

Finding the Fourth Proportional to 14,728.80, 20,332.32 and 8,762.55

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Solution

The fourth proportional to 14,728.80, 20,332.32 and 8,762.55 is: 12,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.80 : 20,332.32 = 8,762.55 : x
  2. Step 2: Convert to fraction form
    14,728.80/20,332.32 = 8,762.55/x
  3. Step 3: Cross multiply
    14,728.80x = 20,332.32 × 8,762.55
  4. Step 4: Simplify right side
    14,728.80x = 178,162,970.62
  5. Step 5: Solve for x
    x = 178,162,970.62/14,728.80
  6. Step 6: Final answer
    x = 12,096.23

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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.