Home / 8,945.71-13,422.35-4,784.63

Finding the Fourth Proportional to 8,945.71, 13,422.35 and 4,784.63

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Solution

The fourth proportional to 8,945.71, 13,422.35 and 4,784.63 is: 7,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.71 : 13,422.35 = 4,784.63 : x
  2. Step 2: Convert to fraction form
    8,945.71/13,422.35 = 4,784.63/x
  3. Step 3: Cross multiply
    8,945.71x = 13,422.35 × 4,784.63
  4. Step 4: Simplify right side
    8,945.71x = 64,220,923.33
  5. Step 5: Solve for x
    x = 64,220,923.33/8,945.71
  6. Step 6: Final answer
    x = 7,178.97

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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.