Home / 13,447.55-20,174.52-8,521.34

Finding the Fourth Proportional to 13,447.55, 20,174.52 and 8,521.34

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Solution

The fourth proportional to 13,447.55, 20,174.52 and 8,521.34 is: 12,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.55 : 20,174.52 = 8,521.34 : x
  2. Step 2: Convert to fraction form
    13,447.55/20,174.52 = 8,521.34/x
  3. Step 3: Cross multiply
    13,447.55x = 20,174.52 × 8,521.34
  4. Step 4: Simplify right side
    13,447.55x = 171,913,827.41
  5. Step 5: Solve for x
    x = 171,913,827.41/13,447.55
  6. Step 6: Final answer
    x = 12,784.02

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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.