Home / 12,492.05-17,238.74-6,826.55

Finding the Fourth Proportional to 12,492.05, 17,238.74 and 6,826.55

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Solution

The fourth proportional to 12,492.05, 17,238.74 and 6,826.55 is: 9,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.05 : 17,238.74 = 6,826.55 : x
  2. Step 2: Convert to fraction form
    12,492.05/17,238.74 = 6,826.55/x
  3. Step 3: Cross multiply
    12,492.05x = 17,238.74 × 6,826.55
  4. Step 4: Simplify right side
    12,492.05x = 117,681,086.41
  5. Step 5: Solve for x
    x = 117,681,086.41/12,492.05
  6. Step 6: Final answer
    x = 9,420.48

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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.