Home / 11,257.12-15,531.96-6,779.98

Finding the Fourth Proportional to 11,257.12, 15,531.96 and 6,779.98

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Solution

The fourth proportional to 11,257.12, 15,531.96 and 6,779.98 is: 9,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.12 : 15,531.96 = 6,779.98 : x
  2. Step 2: Convert to fraction form
    11,257.12/15,531.96 = 6,779.98/x
  3. Step 3: Cross multiply
    11,257.12x = 15,531.96 × 6,779.98
  4. Step 4: Simplify right side
    11,257.12x = 105,306,378.16
  5. Step 5: Solve for x
    x = 105,306,378.16/11,257.12
  6. Step 6: Final answer
    x = 9,354.65

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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.