Home / 10,247.80-14,136.78-7,889.08

Finding the Fourth Proportional to 10,247.80, 14,136.78 and 7,889.08

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Solution

The fourth proportional to 10,247.80, 14,136.78 and 7,889.08 is: 10,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.80 : 14,136.78 = 7,889.08 : x
  2. Step 2: Convert to fraction form
    10,247.80/14,136.78 = 7,889.08/x
  3. Step 3: Cross multiply
    10,247.80x = 14,136.78 × 7,889.08
  4. Step 4: Simplify right side
    10,247.80x = 111,526,188.36
  5. Step 5: Solve for x
    x = 111,526,188.36/10,247.80
  6. Step 6: Final answer
    x = 10,882.94

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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.