Home / 14,279.15-21,431.02-9,899.68

Finding the Fourth Proportional to 14,279.15, 21,431.02 and 9,899.68

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Solution

The fourth proportional to 14,279.15, 21,431.02 and 9,899.68 is: 14,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.15 : 21,431.02 = 9,899.68 : x
  2. Step 2: Convert to fraction form
    14,279.15/21,431.02 = 9,899.68/x
  3. Step 3: Cross multiply
    14,279.15x = 21,431.02 × 9,899.68
  4. Step 4: Simplify right side
    14,279.15x = 212,160,161.75
  5. Step 5: Solve for x
    x = 212,160,161.75/14,279.15
  6. Step 6: Final answer
    x = 14,858.04

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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.