Home / 19,518.64-29,279.58-6,370.72

Finding the Fourth Proportional to 19,518.64, 29,279.58 and 6,370.72

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Solution

The fourth proportional to 19,518.64, 29,279.58 and 6,370.72 is: 9,556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.64 : 29,279.58 = 6,370.72 : x
  2. Step 2: Convert to fraction form
    19,518.64/29,279.58 = 6,370.72/x
  3. Step 3: Cross multiply
    19,518.64x = 29,279.58 × 6,370.72
  4. Step 4: Simplify right side
    19,518.64x = 186,532,005.90
  5. Step 5: Solve for x
    x = 186,532,005.90/19,518.64
  6. Step 6: Final answer
    x = 9,556.61

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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.