Home / 12,090.09-18,124.18-4,297.08

Finding the Fourth Proportional to 12,090.09, 18,124.18 and 4,297.08

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Solution

The fourth proportional to 12,090.09, 18,124.18 and 4,297.08 is: 6,441.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.09 : 18,124.18 = 4,297.08 : x
  2. Step 2: Convert to fraction form
    12,090.09/18,124.18 = 4,297.08/x
  3. Step 3: Cross multiply
    12,090.09x = 18,124.18 × 4,297.08
  4. Step 4: Simplify right side
    12,090.09x = 77,880,988.80
  5. Step 5: Solve for x
    x = 77,880,988.80/12,090.09
  6. Step 6: Final answer
    x = 6,441.72

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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.