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Finding the Fourth Proportional to 8,445.83, 11,655.18 and 4,719.83

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Solution

The fourth proportional to 8,445.83, 11,655.18 and 4,719.83 is: 6,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.83 : 11,655.18 = 4,719.83 : x
  2. Step 2: Convert to fraction form
    8,445.83/11,655.18 = 4,719.83/x
  3. Step 3: Cross multiply
    8,445.83x = 11,655.18 × 4,719.83
  4. Step 4: Simplify right side
    8,445.83x = 55,010,409.94
  5. Step 5: Solve for x
    x = 55,010,409.94/8,445.83
  6. Step 6: Final answer
    x = 6,513.33

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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.