Home / 12,220.37-18,332.85-5,557.36

Finding the Fourth Proportional to 12,220.37, 18,332.85 and 5,557.36

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Solution

The fourth proportional to 12,220.37, 18,332.85 and 5,557.36 is: 8,337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.37 : 18,332.85 = 5,557.36 : x
  2. Step 2: Convert to fraction form
    12,220.37/18,332.85 = 5,557.36/x
  3. Step 3: Cross multiply
    12,220.37x = 18,332.85 × 5,557.36
  4. Step 4: Simplify right side
    12,220.37x = 101,882,247.28
  5. Step 5: Solve for x
    x = 101,882,247.28/12,220.37
  6. Step 6: Final answer
    x = 8,337.08

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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.