Home / 15,176.04-20,940.84-8,460.86

Finding the Fourth Proportional to 15,176.04, 20,940.84 and 8,460.86

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Solution

The fourth proportional to 15,176.04, 20,940.84 and 8,460.86 is: 11,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.04 : 20,940.84 = 8,460.86 : x
  2. Step 2: Convert to fraction form
    15,176.04/20,940.84 = 8,460.86/x
  3. Step 3: Cross multiply
    15,176.04x = 20,940.84 × 8,460.86
  4. Step 4: Simplify right side
    15,176.04x = 177,177,515.52
  5. Step 5: Solve for x
    x = 177,177,515.52/15,176.04
  6. Step 6: Final answer
    x = 11,674.82

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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.