Home / 14,105.35-21,158.02-5,779.68

Finding the Fourth Proportional to 14,105.35, 21,158.02 and 5,779.68

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Solution

The fourth proportional to 14,105.35, 21,158.02 and 5,779.68 is: 8,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.35 : 21,158.02 = 5,779.68 : x
  2. Step 2: Convert to fraction form
    14,105.35/21,158.02 = 5,779.68/x
  3. Step 3: Cross multiply
    14,105.35x = 21,158.02 × 5,779.68
  4. Step 4: Simplify right side
    14,105.35x = 122,286,585.03
  5. Step 5: Solve for x
    x = 122,286,585.03/14,105.35
  6. Step 6: Final answer
    x = 8,669.52

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Double scale
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Similar ratio
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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.