Home / 14,136.78-21,186.84-5,807.36

Finding the Fourth Proportional to 14,136.78, 21,186.84 and 5,807.36

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Solution

The fourth proportional to 14,136.78, 21,186.84 and 5,807.36 is: 8,703.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.78 : 21,186.84 = 5,807.36 : x
  2. Step 2: Convert to fraction form
    14,136.78/21,186.84 = 5,807.36/x
  3. Step 3: Cross multiply
    14,136.78x = 21,186.84 × 5,807.36
  4. Step 4: Simplify right side
    14,136.78x = 123,039,607.14
  5. Step 5: Solve for x
    x = 123,039,607.14/14,136.78
  6. Step 6: Final answer
    x = 8,703.51

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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.