Home / 14,146.10-21,219.20-4,285.46

Finding the Fourth Proportional to 14,146.10, 21,219.20 and 4,285.46

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Solution

The fourth proportional to 14,146.10, 21,219.20 and 4,285.46 is: 6,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.10 : 21,219.20 = 4,285.46 : x
  2. Step 2: Convert to fraction form
    14,146.10/21,219.20 = 4,285.46/x
  3. Step 3: Cross multiply
    14,146.10x = 21,219.20 × 4,285.46
  4. Step 4: Simplify right side
    14,146.10x = 90,934,032.83
  5. Step 5: Solve for x
    x = 90,934,032.83/14,146.10
  6. Step 6: Final answer
    x = 6,428.21

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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.