Home / 13,176.82-18,184.28-7,208.88

Finding the Fourth Proportional to 13,176.82, 18,184.28 and 7,208.88

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Solution

The fourth proportional to 13,176.82, 18,184.28 and 7,208.88 is: 9,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.82 : 18,184.28 = 7,208.88 : x
  2. Step 2: Convert to fraction form
    13,176.82/18,184.28 = 7,208.88/x
  3. Step 3: Cross multiply
    13,176.82x = 18,184.28 × 7,208.88
  4. Step 4: Simplify right side
    13,176.82x = 131,088,292.41
  5. Step 5: Solve for x
    x = 131,088,292.41/13,176.82
  6. Step 6: Final answer
    x = 9,948.40

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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.