Home / 7,340.08-10,135.16-6,780.36

Finding the Fourth Proportional to 7,340.08, 10,135.16 and 6,780.36

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Solution

The fourth proportional to 7,340.08, 10,135.16 and 6,780.36 is: 9,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.08 : 10,135.16 = 6,780.36 : x
  2. Step 2: Convert to fraction form
    7,340.08/10,135.16 = 6,780.36/x
  3. Step 3: Cross multiply
    7,340.08x = 10,135.16 × 6,780.36
  4. Step 4: Simplify right side
    7,340.08x = 68,720,033.46
  5. Step 5: Solve for x
    x = 68,720,033.46/7,340.08
  6. Step 6: Final answer
    x = 9,362.30

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Half scale
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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.