Home / 12,526.79-18,791.91-4,209.18

Finding the Fourth Proportional to 12,526.79, 18,791.91 and 4,209.18

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Solution

The fourth proportional to 12,526.79, 18,791.91 and 4,209.18 is: 6,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.79 : 18,791.91 = 4,209.18 : x
  2. Step 2: Convert to fraction form
    12,526.79/18,791.91 = 4,209.18/x
  3. Step 3: Cross multiply
    12,526.79x = 18,791.91 × 4,209.18
  4. Step 4: Simplify right side
    12,526.79x = 79,098,566.97
  5. Step 5: Solve for x
    x = 79,098,566.97/12,526.79
  6. Step 6: Final answer
    x = 6,314.35

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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.