Home / 14,120.40-19,484.13-8,453.79

Finding the Fourth Proportional to 14,120.40, 19,484.13 and 8,453.79

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Solution

The fourth proportional to 14,120.40, 19,484.13 and 8,453.79 is: 11,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.40 : 19,484.13 = 8,453.79 : x
  2. Step 2: Convert to fraction form
    14,120.40/19,484.13 = 8,453.79/x
  3. Step 3: Cross multiply
    14,120.40x = 19,484.13 × 8,453.79
  4. Step 4: Simplify right side
    14,120.40x = 164,714,743.35
  5. Step 5: Solve for x
    x = 164,714,743.35/14,120.40
  6. Step 6: Final answer
    x = 11,665.02

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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.