Home / 16,853.10-25,279.65-13,742.70

Finding the Fourth Proportional to 16,853.10, 25,279.65 and 13,742.70

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Solution

The fourth proportional to 16,853.10, 25,279.65 and 13,742.70 is: 20,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.10 : 25,279.65 = 13,742.70 : x
  2. Step 2: Convert to fraction form
    16,853.10/25,279.65 = 13,742.70/x
  3. Step 3: Cross multiply
    16,853.10x = 25,279.65 × 13,742.70
  4. Step 4: Simplify right side
    16,853.10x = 347,410,646.06
  5. Step 5: Solve for x
    x = 347,410,646.06/16,853.10
  6. Step 6: Final answer
    x = 20,614.05

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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.