Home / 12,085.90-18,136.04-6,539.13

Finding the Fourth Proportional to 12,085.90, 18,136.04 and 6,539.13

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Solution

The fourth proportional to 12,085.90, 18,136.04 and 6,539.13 is: 9,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.90 : 18,136.04 = 6,539.13 : x
  2. Step 2: Convert to fraction form
    12,085.90/18,136.04 = 6,539.13/x
  3. Step 3: Cross multiply
    12,085.90x = 18,136.04 × 6,539.13
  4. Step 4: Simplify right side
    12,085.90x = 118,593,890.55
  5. Step 5: Solve for x
    x = 118,593,890.55/12,085.90
  6. Step 6: Final answer
    x = 9,812.58

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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.