Home / 12,492.45-17,240.27-6,827.72

Finding the Fourth Proportional to 12,492.45, 17,240.27 and 6,827.72

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Solution

The fourth proportional to 12,492.45, 17,240.27 and 6,827.72 is: 9,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.45 : 17,240.27 = 6,827.72 : x
  2. Step 2: Convert to fraction form
    12,492.45/17,240.27 = 6,827.72/x
  3. Step 3: Cross multiply
    12,492.45x = 17,240.27 × 6,827.72
  4. Step 4: Simplify right side
    12,492.45x = 117,711,615.94
  5. Step 5: Solve for x
    x = 117,711,615.94/12,492.45
  6. Step 6: Final answer
    x = 9,422.62

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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.