Home / 11,421.63-17,138.93-4,500.99

Finding the Fourth Proportional to 11,421.63, 17,138.93 and 4,500.99

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Solution

The fourth proportional to 11,421.63, 17,138.93 and 4,500.99 is: 6,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.63 : 17,138.93 = 4,500.99 : x
  2. Step 2: Convert to fraction form
    11,421.63/17,138.93 = 4,500.99/x
  3. Step 3: Cross multiply
    11,421.63x = 17,138.93 × 4,500.99
  4. Step 4: Simplify right side
    11,421.63x = 77,142,130.04
  5. Step 5: Solve for x
    x = 77,142,130.04/11,421.63
  6. Step 6: Final answer
    x = 6,754.04

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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.