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Finding the Fourth Proportional to 9,987.35, 14,957.67 and 7,893.29

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Solution

The fourth proportional to 9,987.35, 14,957.67 and 7,893.29 is: 11,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.35 : 14,957.67 = 7,893.29 : x
  2. Step 2: Convert to fraction form
    9,987.35/14,957.67 = 7,893.29/x
  3. Step 3: Cross multiply
    9,987.35x = 14,957.67 × 7,893.29
  4. Step 4: Simplify right side
    9,987.35x = 118,065,294.03
  5. Step 5: Solve for x
    x = 118,065,294.03/9,987.35
  6. Step 6: Final answer
    x = 11,821.49

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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.