Home / 7,309.45-10,079.87-6,702.36

Finding the Fourth Proportional to 7,309.45, 10,079.87 and 6,702.36

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Solution

The fourth proportional to 7,309.45, 10,079.87 and 6,702.36 is: 9,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,309.45 : 10,079.87 = 6,702.36 : x
  2. Step 2: Convert to fraction form
    7,309.45/10,079.87 = 6,702.36/x
  3. Step 3: Cross multiply
    7,309.45x = 10,079.87 × 6,702.36
  4. Step 4: Simplify right side
    7,309.45x = 67,558,917.49
  5. Step 5: Solve for x
    x = 67,558,917.49/7,309.45
  6. Step 6: Final answer
    x = 9,242.68

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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.