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Finding the Fourth Proportional to 7,967.89, 10,994.79 and 4,430.89

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Solution

The fourth proportional to 7,967.89, 10,994.79 and 4,430.89 is: 6,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.89 : 10,994.79 = 4,430.89 : x
  2. Step 2: Convert to fraction form
    7,967.89/10,994.79 = 4,430.89/x
  3. Step 3: Cross multiply
    7,967.89x = 10,994.79 × 4,430.89
  4. Step 4: Simplify right side
    7,967.89x = 48,716,677.58
  5. Step 5: Solve for x
    x = 48,716,677.58/7,967.89
  6. Step 6: Final answer
    x = 6,114.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.