Home / 13,461.02-20,181.45-9,289.11

Finding the Fourth Proportional to 13,461.02, 20,181.45 and 9,289.11

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Solution

The fourth proportional to 13,461.02, 20,181.45 and 9,289.11 is: 13,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.02 : 20,181.45 = 9,289.11 : x
  2. Step 2: Convert to fraction form
    13,461.02/20,181.45 = 9,289.11/x
  3. Step 3: Cross multiply
    13,461.02x = 20,181.45 × 9,289.11
  4. Step 4: Simplify right side
    13,461.02x = 187,467,819.52
  5. Step 5: Solve for x
    x = 187,467,819.52/13,461.02
  6. Step 6: Final answer
    x = 13,926.72

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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.