Home / 12,225.82-18,347.48-5,210.74

Finding the Fourth Proportional to 12,225.82, 18,347.48 and 5,210.74

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Solution

The fourth proportional to 12,225.82, 18,347.48 and 5,210.74 is: 7,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.82 : 18,347.48 = 5,210.74 : x
  2. Step 2: Convert to fraction form
    12,225.82/18,347.48 = 5,210.74/x
  3. Step 3: Cross multiply
    12,225.82x = 18,347.48 × 5,210.74
  4. Step 4: Simplify right side
    12,225.82x = 95,603,947.94
  5. Step 5: Solve for x
    x = 95,603,947.94/12,225.82
  6. Step 6: Final answer
    x = 7,819.84

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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.