Home / 13,545.36-18,651.06-11,857.32

Finding the Fourth Proportional to 13,545.36, 18,651.06 and 11,857.32

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Solution

The fourth proportional to 13,545.36, 18,651.06 and 11,857.32 is: 16,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.36 : 18,651.06 = 11,857.32 : x
  2. Step 2: Convert to fraction form
    13,545.36/18,651.06 = 11,857.32/x
  3. Step 3: Cross multiply
    13,545.36x = 18,651.06 × 11,857.32
  4. Step 4: Simplify right side
    13,545.36x = 221,151,586.76
  5. Step 5: Solve for x
    x = 221,151,586.76/13,545.36
  6. Step 6: Final answer
    x = 16,326.74

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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.