Home / 13,412.74-20,125.60-5,521.08

Finding the Fourth Proportional to 13,412.74, 20,125.60 and 5,521.08

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Solution

The fourth proportional to 13,412.74, 20,125.60 and 5,521.08 is: 8,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.74 : 20,125.60 = 5,521.08 : x
  2. Step 2: Convert to fraction form
    13,412.74/20,125.60 = 5,521.08/x
  3. Step 3: Cross multiply
    13,412.74x = 20,125.60 × 5,521.08
  4. Step 4: Simplify right side
    13,412.74x = 111,115,047.65
  5. Step 5: Solve for x
    x = 111,115,047.65/13,412.74
  6. Step 6: Final answer
    x = 8,284.29

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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.