Home / 11,136.96-15,359.76-6,886.08

Finding the Fourth Proportional to 11,136.96, 15,359.76 and 6,886.08

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Solution

The fourth proportional to 11,136.96, 15,359.76 and 6,886.08 is: 9,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.96 : 15,359.76 = 6,886.08 : x
  2. Step 2: Convert to fraction form
    11,136.96/15,359.76 = 6,886.08/x
  3. Step 3: Cross multiply
    11,136.96x = 15,359.76 × 6,886.08
  4. Step 4: Simplify right side
    11,136.96x = 105,768,536.14
  5. Step 5: Solve for x
    x = 105,768,536.14/11,136.96
  6. Step 6: Final answer
    x = 9,497.07

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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.