Home / 14,089.60-21,132.80-3,702.40

Finding the Fourth Proportional to 14,089.60, 21,132.80 and 3,702.40

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Solution

The fourth proportional to 14,089.60, 21,132.80 and 3,702.40 is: 5,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.60 : 21,132.80 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    14,089.60/21,132.80 = 3,702.40/x
  3. Step 3: Cross multiply
    14,089.60x = 21,132.80 × 3,702.40
  4. Step 4: Simplify right side
    14,089.60x = 78,242,078.72
  5. Step 5: Solve for x
    x = 78,242,078.72/14,089.60
  6. Step 6: Final answer
    x = 5,553.18

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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.