Home / 7,989.17-11,017.90-5,005.34

Finding the Fourth Proportional to 7,989.17, 11,017.90 and 5,005.34

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Solution

The fourth proportional to 7,989.17, 11,017.90 and 5,005.34 is: 6,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.17 : 11,017.90 = 5,005.34 : x
  2. Step 2: Convert to fraction form
    7,989.17/11,017.90 = 5,005.34/x
  3. Step 3: Cross multiply
    7,989.17x = 11,017.90 × 5,005.34
  4. Step 4: Simplify right side
    7,989.17x = 55,148,267.98
  5. Step 5: Solve for x
    x = 55,148,267.98/7,989.17
  6. Step 6: Final answer
    x = 6,902.88

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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.