Home / 13,784.42-19,023.10-8,481

Finding the Fourth Proportional to 13,784.42, 19,023.10 and 8,481

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Solution

The fourth proportional to 13,784.42, 19,023.10 and 8,481 is: 11,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.42 : 19,023.10 = 8,481 : x
  2. Step 2: Convert to fraction form
    13,784.42/19,023.10 = 8,481/x
  3. Step 3: Cross multiply
    13,784.42x = 19,023.10 × 8,481
  4. Step 4: Simplify right side
    13,784.42x = 161,334,911.10
  5. Step 5: Solve for x
    x = 161,334,911.10/13,784.42
  6. Step 6: Final answer
    x = 11,704.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.