Home / 13,342.66-18,355.24-11,536.66

Finding the Fourth Proportional to 13,342.66, 18,355.24 and 11,536.66

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Solution

The fourth proportional to 13,342.66, 18,355.24 and 11,536.66 is: 15,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.66 : 18,355.24 = 11,536.66 : x
  2. Step 2: Convert to fraction form
    13,342.66/18,355.24 = 11,536.66/x
  3. Step 3: Cross multiply
    13,342.66x = 18,355.24 × 11,536.66
  4. Step 4: Simplify right side
    13,342.66x = 211,758,200.46
  5. Step 5: Solve for x
    x = 211,758,200.46/13,342.66
  6. Step 6: Final answer
    x = 15,870.77

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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.