Home / 12,529.92-18,795.33-4,210.20

Finding the Fourth Proportional to 12,529.92, 18,795.33 and 4,210.20

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Solution

The fourth proportional to 12,529.92, 18,795.33 and 4,210.20 is: 6,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.92 : 18,795.33 = 4,210.20 : x
  2. Step 2: Convert to fraction form
    12,529.92/18,795.33 = 4,210.20/x
  3. Step 3: Cross multiply
    12,529.92x = 18,795.33 × 4,210.20
  4. Step 4: Simplify right side
    12,529.92x = 79,132,098.37
  5. Step 5: Solve for x
    x = 79,132,098.37/12,529.92
  6. Step 6: Final answer
    x = 6,315.45

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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.