Home / 26,915.18-40,368.11-8,190.68

Finding the Fourth Proportional to 26,915.18, 40,368.11 and 8,190.68

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Solution

The fourth proportional to 26,915.18, 40,368.11 and 8,190.68 is: 12,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.18 : 40,368.11 = 8,190.68 : x
  2. Step 2: Convert to fraction form
    26,915.18/40,368.11 = 8,190.68/x
  3. Step 3: Cross multiply
    26,915.18x = 40,368.11 × 8,190.68
  4. Step 4: Simplify right side
    26,915.18x = 330,642,028.42
  5. Step 5: Solve for x
    x = 330,642,028.42/26,915.18
  6. Step 6: Final answer
    x = 12,284.60

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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.