Home / 13,316.93-18,380.58-8,010.72

Finding the Fourth Proportional to 13,316.93, 18,380.58 and 8,010.72

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Solution

The fourth proportional to 13,316.93, 18,380.58 and 8,010.72 is: 11,056.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.93 : 18,380.58 = 8,010.72 : x
  2. Step 2: Convert to fraction form
    13,316.93/18,380.58 = 8,010.72/x
  3. Step 3: Cross multiply
    13,316.93x = 18,380.58 × 8,010.72
  4. Step 4: Simplify right side
    13,316.93x = 147,241,679.82
  5. Step 5: Solve for x
    x = 147,241,679.82/13,316.93
  6. Step 6: Final answer
    x = 11,056.73

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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.