Home / 12,528.85-18,792.61-4,208.93

Finding the Fourth Proportional to 12,528.85, 18,792.61 and 4,208.93

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Solution

The fourth proportional to 12,528.85, 18,792.61 and 4,208.93 is: 6,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.85 : 18,792.61 = 4,208.93 : x
  2. Step 2: Convert to fraction form
    12,528.85/18,792.61 = 4,208.93/x
  3. Step 3: Cross multiply
    12,528.85x = 18,792.61 × 4,208.93
  4. Step 4: Simplify right side
    12,528.85x = 79,096,780.01
  5. Step 5: Solve for x
    x = 79,096,780.01/12,528.85
  6. Step 6: Final answer
    x = 6,313.17

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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.