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Finding the Fourth Proportional to 8,555.51, 11,806.22 and 4,779.11

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Solution

The fourth proportional to 8,555.51, 11,806.22 and 4,779.11 is: 6,594.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.51 : 11,806.22 = 4,779.11 : x
  2. Step 2: Convert to fraction form
    8,555.51/11,806.22 = 4,779.11/x
  3. Step 3: Cross multiply
    8,555.51x = 11,806.22 × 4,779.11
  4. Step 4: Simplify right side
    8,555.51x = 56,423,176.98
  5. Step 5: Solve for x
    x = 56,423,176.98/8,555.51
  6. Step 6: Final answer
    x = 6,594.96

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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.