Home / 12,069.12-18,100.80-6,222.72

Finding the Fourth Proportional to 12,069.12, 18,100.80 and 6,222.72

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Solution

The fourth proportional to 12,069.12, 18,100.80 and 6,222.72 is: 9,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.12 : 18,100.80 = 6,222.72 : x
  2. Step 2: Convert to fraction form
    12,069.12/18,100.80 = 6,222.72/x
  3. Step 3: Cross multiply
    12,069.12x = 18,100.80 × 6,222.72
  4. Step 4: Simplify right side
    12,069.12x = 112,636,210.18
  5. Step 5: Solve for x
    x = 112,636,210.18/12,069.12
  6. Step 6: Final answer
    x = 9,332.60

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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.