Home / 12,225.01-18,330.68-5,643.05

Finding the Fourth Proportional to 12,225.01, 18,330.68 and 5,643.05

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Solution

The fourth proportional to 12,225.01, 18,330.68 and 5,643.05 is: 8,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.01 : 18,330.68 = 5,643.05 : x
  2. Step 2: Convert to fraction form
    12,225.01/18,330.68 = 5,643.05/x
  3. Step 3: Cross multiply
    12,225.01x = 18,330.68 × 5,643.05
  4. Step 4: Simplify right side
    12,225.01x = 103,441,033.68
  5. Step 5: Solve for x
    x = 103,441,033.68/12,225.01
  6. Step 6: Final answer
    x = 8,461.43

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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.