Home / 8,109.47-11,191.06-4,572.68

Finding the Fourth Proportional to 8,109.47, 11,191.06 and 4,572.68

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Solution

The fourth proportional to 8,109.47, 11,191.06 and 4,572.68 is: 6,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.47 : 11,191.06 = 4,572.68 : x
  2. Step 2: Convert to fraction form
    8,109.47/11,191.06 = 4,572.68/x
  3. Step 3: Cross multiply
    8,109.47x = 11,191.06 × 4,572.68
  4. Step 4: Simplify right side
    8,109.47x = 51,173,152.79
  5. Step 5: Solve for x
    x = 51,173,152.79/8,109.47
  6. Step 6: Final answer
    x = 6,310.29

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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.