Home / 14,188.30-21,285.90-6,397.12

Finding the Fourth Proportional to 14,188.30, 21,285.90 and 6,397.12

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Solution

The fourth proportional to 14,188.30, 21,285.90 and 6,397.12 is: 9,597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.30 : 21,285.90 = 6,397.12 : x
  2. Step 2: Convert to fraction form
    14,188.30/21,285.90 = 6,397.12/x
  3. Step 3: Cross multiply
    14,188.30x = 21,285.90 × 6,397.12
  4. Step 4: Simplify right side
    14,188.30x = 136,168,456.61
  5. Step 5: Solve for x
    x = 136,168,456.61/14,188.30
  6. Step 6: Final answer
    x = 9,597.24

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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.