Home / 11,347.56-15,660.02-6,311.72

Finding the Fourth Proportional to 11,347.56, 15,660.02 and 6,311.72

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Solution

The fourth proportional to 11,347.56, 15,660.02 and 6,311.72 is: 8,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.56 : 15,660.02 = 6,311.72 : x
  2. Step 2: Convert to fraction form
    11,347.56/15,660.02 = 6,311.72/x
  3. Step 3: Cross multiply
    11,347.56x = 15,660.02 × 6,311.72
  4. Step 4: Simplify right side
    11,347.56x = 98,841,661.43
  5. Step 5: Solve for x
    x = 98,841,661.43/11,347.56
  6. Step 6: Final answer
    x = 8,710.39

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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.