Home / 14,045.80-21,060.60-5,281.60

Finding the Fourth Proportional to 14,045.80, 21,060.60 and 5,281.60

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Solution

The fourth proportional to 14,045.80, 21,060.60 and 5,281.60 is: 7,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.80 : 21,060.60 = 5,281.60 : x
  2. Step 2: Convert to fraction form
    14,045.80/21,060.60 = 5,281.60/x
  3. Step 3: Cross multiply
    14,045.80x = 21,060.60 × 5,281.60
  4. Step 4: Simplify right side
    14,045.80x = 111,233,664.96
  5. Step 5: Solve for x
    x = 111,233,664.96/14,045.80
  6. Step 6: Final answer
    x = 7,919.35

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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.