Home / 14,294.80-21,456.60-6,905.20

Finding the Fourth Proportional to 14,294.80, 21,456.60 and 6,905.20

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Solution

The fourth proportional to 14,294.80, 21,456.60 and 6,905.20 is: 10,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,294.80 : 21,456.60 = 6,905.20 : x
  2. Step 2: Convert to fraction form
    14,294.80/21,456.60 = 6,905.20/x
  3. Step 3: Cross multiply
    14,294.80x = 21,456.60 × 6,905.20
  4. Step 4: Simplify right side
    14,294.80x = 148,162,114.32
  5. Step 5: Solve for x
    x = 148,162,114.32/14,294.80
  6. Step 6: Final answer
    x = 10,364.76

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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.