Home / 11,159.67-15,400.29-6,123.75

Finding the Fourth Proportional to 11,159.67, 15,400.29 and 6,123.75

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Solution

The fourth proportional to 11,159.67, 15,400.29 and 6,123.75 is: 8,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.67 : 15,400.29 = 6,123.75 : x
  2. Step 2: Convert to fraction form
    11,159.67/15,400.29 = 6,123.75/x
  3. Step 3: Cross multiply
    11,159.67x = 15,400.29 × 6,123.75
  4. Step 4: Simplify right side
    11,159.67x = 94,307,525.89
  5. Step 5: Solve for x
    x = 94,307,525.89/11,159.67
  6. Step 6: Final answer
    x = 8,450.75

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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.