Home / 12,220.58-18,332.67-4,427.57

Finding the Fourth Proportional to 12,220.58, 18,332.67 and 4,427.57

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Solution

The fourth proportional to 12,220.58, 18,332.67 and 4,427.57 is: 6,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.58 : 18,332.67 = 4,427.57 : x
  2. Step 2: Convert to fraction form
    12,220.58/18,332.67 = 4,427.57/x
  3. Step 3: Cross multiply
    12,220.58x = 18,332.67 × 4,427.57
  4. Step 4: Simplify right side
    12,220.58x = 81,169,179.71
  5. Step 5: Solve for x
    x = 81,169,179.71/12,220.58
  6. Step 6: Final answer
    x = 6,642.01

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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.