Home / 13,727.04-18,946.08-8,136.96

Finding the Fourth Proportional to 13,727.04, 18,946.08 and 8,136.96

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Solution

The fourth proportional to 13,727.04, 18,946.08 and 8,136.96 is: 11,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.04 : 18,946.08 = 8,136.96 : x
  2. Step 2: Convert to fraction form
    13,727.04/18,946.08 = 8,136.96/x
  3. Step 3: Cross multiply
    13,727.04x = 18,946.08 × 8,136.96
  4. Step 4: Simplify right side
    13,727.04x = 154,163,495.12
  5. Step 5: Solve for x
    x = 154,163,495.12/13,727.04
  6. Step 6: Final answer
    x = 11,230.64

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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.