Home / 14,543.53-21,815.30-4,155.28

Finding the Fourth Proportional to 14,543.53, 21,815.30 and 4,155.28

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Solution

The fourth proportional to 14,543.53, 21,815.30 and 4,155.28 is: 6,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.53 : 21,815.30 = 4,155.28 : x
  2. Step 2: Convert to fraction form
    14,543.53/21,815.30 = 4,155.28/x
  3. Step 3: Cross multiply
    14,543.53x = 21,815.30 × 4,155.28
  4. Step 4: Simplify right side
    14,543.53x = 90,648,701.86
  5. Step 5: Solve for x
    x = 90,648,701.86/14,543.53
  6. Step 6: Final answer
    x = 6,232.92

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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.