Home / 12,784.38-19,160.33-5,756.86

Finding the Fourth Proportional to 12,784.38, 19,160.33 and 5,756.86

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Solution

The fourth proportional to 12,784.38, 19,160.33 and 5,756.86 is: 8,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.38 : 19,160.33 = 5,756.86 : x
  2. Step 2: Convert to fraction form
    12,784.38/19,160.33 = 5,756.86/x
  3. Step 3: Cross multiply
    12,784.38x = 19,160.33 × 5,756.86
  4. Step 4: Simplify right side
    12,784.38x = 110,303,337.36
  5. Step 5: Solve for x
    x = 110,303,337.36/12,784.38
  6. Step 6: Final answer
    x = 8,627.98

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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.