Home / 10,797.55-16,159.75-6,640.20

Finding the Fourth Proportional to 10,797.55, 16,159.75 and 6,640.20

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Solution

The fourth proportional to 10,797.55, 16,159.75 and 6,640.20 is: 9,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,797.55 : 16,159.75 = 6,640.20 : x
  2. Step 2: Convert to fraction form
    10,797.55/16,159.75 = 6,640.20/x
  3. Step 3: Cross multiply
    10,797.55x = 16,159.75 × 6,640.20
  4. Step 4: Simplify right side
    10,797.55x = 107,303,971.95
  5. Step 5: Solve for x
    x = 107,303,971.95/10,797.55
  6. Step 6: Final answer
    x = 9,937.81

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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.