Home / 8,779.61-13,166.51-4,394.07

Finding the Fourth Proportional to 8,779.61, 13,166.51 and 4,394.07

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Solution

The fourth proportional to 8,779.61, 13,166.51 and 4,394.07 is: 6,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.61 : 13,166.51 = 4,394.07 : x
  2. Step 2: Convert to fraction form
    8,779.61/13,166.51 = 4,394.07/x
  3. Step 3: Cross multiply
    8,779.61x = 13,166.51 × 4,394.07
  4. Step 4: Simplify right side
    8,779.61x = 57,854,544.63
  5. Step 5: Solve for x
    x = 57,854,544.63/8,779.61
  6. Step 6: Final answer
    x = 6,589.65

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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.