Home / 13,524.90-20,291.40-5,205.66

Finding the Fourth Proportional to 13,524.90, 20,291.40 and 5,205.66

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Solution

The fourth proportional to 13,524.90, 20,291.40 and 5,205.66 is: 7,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.90 : 20,291.40 = 5,205.66 : x
  2. Step 2: Convert to fraction form
    13,524.90/20,291.40 = 5,205.66/x
  3. Step 3: Cross multiply
    13,524.90x = 20,291.40 × 5,205.66
  4. Step 4: Simplify right side
    13,524.90x = 105,630,129.32
  5. Step 5: Solve for x
    x = 105,630,129.32/13,524.90
  6. Step 6: Final answer
    x = 7,810.05

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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.