Home / 13,354.34-20,031.59-9,181.77

Finding the Fourth Proportional to 13,354.34, 20,031.59 and 9,181.77

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Solution

The fourth proportional to 13,354.34, 20,031.59 and 9,181.77 is: 13,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.34 : 20,031.59 = 9,181.77 : x
  2. Step 2: Convert to fraction form
    13,354.34/20,031.59 = 9,181.77/x
  3. Step 3: Cross multiply
    13,354.34x = 20,031.59 × 9,181.77
  4. Step 4: Simplify right side
    13,354.34x = 183,925,406.21
  5. Step 5: Solve for x
    x = 183,925,406.21/13,354.34
  6. Step 6: Final answer
    x = 13,772.71

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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.