Home / 13,319.06-18,379.16-7,651.96

Finding the Fourth Proportional to 13,319.06, 18,379.16 and 7,651.96

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Solution

The fourth proportional to 13,319.06, 18,379.16 and 7,651.96 is: 10,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.06 : 18,379.16 = 7,651.96 : x
  2. Step 2: Convert to fraction form
    13,319.06/18,379.16 = 7,651.96/x
  3. Step 3: Cross multiply
    13,319.06x = 18,379.16 × 7,651.96
  4. Step 4: Simplify right side
    13,319.06x = 140,636,597.15
  5. Step 5: Solve for x
    x = 140,636,597.15/13,319.06
  6. Step 6: Final answer
    x = 10,559.05

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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.