Home / 12,599.48-18,900.09-4,280.36

Finding the Fourth Proportional to 12,599.48, 18,900.09 and 4,280.36

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Solution

The fourth proportional to 12,599.48, 18,900.09 and 4,280.36 is: 6,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.48 : 18,900.09 = 4,280.36 : x
  2. Step 2: Convert to fraction form
    12,599.48/18,900.09 = 4,280.36/x
  3. Step 3: Cross multiply
    12,599.48x = 18,900.09 × 4,280.36
  4. Step 4: Simplify right side
    12,599.48x = 80,899,189.23
  5. Step 5: Solve for x
    x = 80,899,189.23/12,599.48
  6. Step 6: Final answer
    x = 6,420.84

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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.