Home / 7,783.38-11,673.63-2,587.86

Finding the Fourth Proportional to 7,783.38, 11,673.63 and 2,587.86

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Solution

The fourth proportional to 7,783.38, 11,673.63 and 2,587.86 is: 3,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.38 : 11,673.63 = 2,587.86 : x
  2. Step 2: Convert to fraction form
    7,783.38/11,673.63 = 2,587.86/x
  3. Step 3: Cross multiply
    7,783.38x = 11,673.63 × 2,587.86
  4. Step 4: Simplify right side
    7,783.38x = 30,209,720.13
  5. Step 5: Solve for x
    x = 30,209,720.13/7,783.38
  6. Step 6: Final answer
    x = 3,881.31

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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.