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Finding the Fourth Proportional to 15,136.68, 22,685.80 and 6,807.80

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Solution

The fourth proportional to 15,136.68, 22,685.80 and 6,807.80 is: 10,203.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.68 : 22,685.80 = 6,807.80 : x
  2. Step 2: Convert to fraction form
    15,136.68/22,685.80 = 6,807.80/x
  3. Step 3: Cross multiply
    15,136.68x = 22,685.80 × 6,807.80
  4. Step 4: Simplify right side
    15,136.68x = 154,440,389.24
  5. Step 5: Solve for x
    x = 154,440,389.24/15,136.68
  6. Step 6: Final answer
    x = 10,203.06

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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.