Home / 13,525.14-20,279.58-5,618.10

Finding the Fourth Proportional to 13,525.14, 20,279.58 and 5,618.10

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Solution

The fourth proportional to 13,525.14, 20,279.58 and 5,618.10 is: 8,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.14 : 20,279.58 = 5,618.10 : x
  2. Step 2: Convert to fraction form
    13,525.14/20,279.58 = 5,618.10/x
  3. Step 3: Cross multiply
    13,525.14x = 20,279.58 × 5,618.10
  4. Step 4: Simplify right side
    13,525.14x = 113,932,708.40
  5. Step 5: Solve for x
    x = 113,932,708.40/13,525.14
  6. Step 6: Final answer
    x = 8,423.77

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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.