Home / 11,710.37-16,160.55-6,405.53

Finding the Fourth Proportional to 11,710.37, 16,160.55 and 6,405.53

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Solution

The fourth proportional to 11,710.37, 16,160.55 and 6,405.53 is: 8,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.37 : 16,160.55 = 6,405.53 : x
  2. Step 2: Convert to fraction form
    11,710.37/16,160.55 = 6,405.53/x
  3. Step 3: Cross multiply
    11,710.37x = 16,160.55 × 6,405.53
  4. Step 4: Simplify right side
    11,710.37x = 103,516,887.84
  5. Step 5: Solve for x
    x = 103,516,887.84/11,710.37
  6. Step 6: Final answer
    x = 8,839.76

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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.