Home / 14,880.47-20,535.21-8,166.53

Finding the Fourth Proportional to 14,880.47, 20,535.21 and 8,166.53

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Solution

The fourth proportional to 14,880.47, 20,535.21 and 8,166.53 is: 11,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.47 : 20,535.21 = 8,166.53 : x
  2. Step 2: Convert to fraction form
    14,880.47/20,535.21 = 8,166.53/x
  3. Step 3: Cross multiply
    14,880.47x = 20,535.21 × 8,166.53
  4. Step 4: Simplify right side
    14,880.47x = 167,701,439.44
  5. Step 5: Solve for x
    x = 167,701,439.44/14,880.47
  6. Step 6: Final answer
    x = 11,269.90

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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.