Home / 11,306.15-15,605.70-6,830.19

Finding the Fourth Proportional to 11,306.15, 15,605.70 and 6,830.19

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Solution

The fourth proportional to 11,306.15, 15,605.70 and 6,830.19 is: 9,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.15 : 15,605.70 = 6,830.19 : x
  2. Step 2: Convert to fraction form
    11,306.15/15,605.70 = 6,830.19/x
  3. Step 3: Cross multiply
    11,306.15x = 15,605.70 × 6,830.19
  4. Step 4: Simplify right side
    11,306.15x = 106,589,870.47
  5. Step 5: Solve for x
    x = 106,589,870.47/11,306.15
  6. Step 6: Final answer
    x = 9,427.60

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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.