Home / 10,655.09-15,992.48-5,393.79

Finding the Fourth Proportional to 10,655.09, 15,992.48 and 5,393.79

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Solution

The fourth proportional to 10,655.09, 15,992.48 and 5,393.79 is: 8,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.09 : 15,992.48 = 5,393.79 : x
  2. Step 2: Convert to fraction form
    10,655.09/15,992.48 = 5,393.79/x
  3. Step 3: Cross multiply
    10,655.09x = 15,992.48 × 5,393.79
  4. Step 4: Simplify right side
    10,655.09x = 86,260,071.96
  5. Step 5: Solve for x
    x = 86,260,071.96/10,655.09
  6. Step 6: Final answer
    x = 8,095.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.