Home / 11,391.37-15,720.48-6,610.95

Finding the Fourth Proportional to 11,391.37, 15,720.48 and 6,610.95

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Solution

The fourth proportional to 11,391.37, 15,720.48 and 6,610.95 is: 9,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.37 : 15,720.48 = 6,610.95 : x
  2. Step 2: Convert to fraction form
    11,391.37/15,720.48 = 6,610.95/x
  3. Step 3: Cross multiply
    11,391.37x = 15,720.48 × 6,610.95
  4. Step 4: Simplify right side
    11,391.37x = 103,927,307.26
  5. Step 5: Solve for x
    x = 103,927,307.26/11,391.37
  6. Step 6: Final answer
    x = 9,123.34

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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.