Home / 14,915.48-20,583.81-8,200.76

Finding the Fourth Proportional to 14,915.48, 20,583.81 and 8,200.76

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Solution

The fourth proportional to 14,915.48, 20,583.81 and 8,200.76 is: 11,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.48 : 20,583.81 = 8,200.76 : x
  2. Step 2: Convert to fraction form
    14,915.48/20,583.81 = 8,200.76/x
  3. Step 3: Cross multiply
    14,915.48x = 20,583.81 × 8,200.76
  4. Step 4: Simplify right side
    14,915.48x = 168,802,885.70
  5. Step 5: Solve for x
    x = 168,802,885.70/14,915.48
  6. Step 6: Final answer
    x = 11,317.29

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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.