Home / 12,089.10-18,136.80-4,693.80

Finding the Fourth Proportional to 12,089.10, 18,136.80 and 4,693.80

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Solution

The fourth proportional to 12,089.10, 18,136.80 and 4,693.80 is: 7,041.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.10 : 18,136.80 = 4,693.80 : x
  2. Step 2: Convert to fraction form
    12,089.10/18,136.80 = 4,693.80/x
  3. Step 3: Cross multiply
    12,089.10x = 18,136.80 × 4,693.80
  4. Step 4: Simplify right side
    12,089.10x = 85,130,511.84
  5. Step 5: Solve for x
    x = 85,130,511.84/12,089.10
  6. Step 6: Final answer
    x = 7,041.92

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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.