Home / 13,455.89-20,184.53-4,095.17

Finding the Fourth Proportional to 13,455.89, 20,184.53 and 4,095.17

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Solution

The fourth proportional to 13,455.89, 20,184.53 and 4,095.17 is: 6,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.89 : 20,184.53 = 4,095.17 : x
  2. Step 2: Convert to fraction form
    13,455.89/20,184.53 = 4,095.17/x
  3. Step 3: Cross multiply
    13,455.89x = 20,184.53 × 4,095.17
  4. Step 4: Simplify right side
    13,455.89x = 82,658,960.32
  5. Step 5: Solve for x
    x = 82,658,960.32/13,455.89
  6. Step 6: Final answer
    x = 6,142.96

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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.