Home / 11,215.39-15,477.15-6,741.61

Finding the Fourth Proportional to 11,215.39, 15,477.15 and 6,741.61

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Solution

The fourth proportional to 11,215.39, 15,477.15 and 6,741.61 is: 9,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.39 : 15,477.15 = 6,741.61 : x
  2. Step 2: Convert to fraction form
    11,215.39/15,477.15 = 6,741.61/x
  3. Step 3: Cross multiply
    11,215.39x = 15,477.15 × 6,741.61
  4. Step 4: Simplify right side
    11,215.39x = 104,340,909.21
  5. Step 5: Solve for x
    x = 104,340,909.21/11,215.39
  6. Step 6: Final answer
    x = 9,303.37

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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.