Home / 19,211.72-28,808.38-9,856.22

Finding the Fourth Proportional to 19,211.72, 28,808.38 and 9,856.22

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Solution

The fourth proportional to 19,211.72, 28,808.38 and 9,856.22 is: 14,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.72 : 28,808.38 = 9,856.22 : x
  2. Step 2: Convert to fraction form
    19,211.72/28,808.38 = 9,856.22/x
  3. Step 3: Cross multiply
    19,211.72x = 28,808.38 × 9,856.22
  4. Step 4: Simplify right side
    19,211.72x = 283,941,731.12
  5. Step 5: Solve for x
    x = 283,941,731.12/19,211.72
  6. Step 6: Final answer
    x = 14,779.61

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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.