Home / 12,632.40-17,431.20-7,043.04

Finding the Fourth Proportional to 12,632.40, 17,431.20 and 7,043.04

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Solution

The fourth proportional to 12,632.40, 17,431.20 and 7,043.04 is: 9,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.40 : 17,431.20 = 7,043.04 : x
  2. Step 2: Convert to fraction form
    12,632.40/17,431.20 = 7,043.04/x
  3. Step 3: Cross multiply
    12,632.40x = 17,431.20 × 7,043.04
  4. Step 4: Simplify right side
    12,632.40x = 122,768,638.85
  5. Step 5: Solve for x
    x = 122,768,638.85/12,632.40
  6. Step 6: Final answer
    x = 9,718.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.