Home / 8,959.44-13,442.45-3,117.72

Finding the Fourth Proportional to 8,959.44, 13,442.45 and 3,117.72

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Solution

The fourth proportional to 8,959.44, 13,442.45 and 3,117.72 is: 4,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.44 : 13,442.45 = 3,117.72 : x
  2. Step 2: Convert to fraction form
    8,959.44/13,442.45 = 3,117.72/x
  3. Step 3: Cross multiply
    8,959.44x = 13,442.45 × 3,117.72
  4. Step 4: Simplify right side
    8,959.44x = 41,909,779.63
  5. Step 5: Solve for x
    x = 41,909,779.63/8,959.44
  6. Step 6: Final answer
    x = 4,677.72

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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.