Home / 12,529.68-18,792.76-4,209.36

Finding the Fourth Proportional to 12,529.68, 18,792.76 and 4,209.36

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Solution

The fourth proportional to 12,529.68, 18,792.76 and 4,209.36 is: 6,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.68 : 18,792.76 = 4,209.36 : x
  2. Step 2: Convert to fraction form
    12,529.68/18,792.76 = 4,209.36/x
  3. Step 3: Cross multiply
    12,529.68x = 18,792.76 × 4,209.36
  4. Step 4: Simplify right side
    12,529.68x = 79,105,492.23
  5. Step 5: Solve for x
    x = 79,105,492.23/12,529.68
  6. Step 6: Final answer
    x = 6,313.45

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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.