Home / 13,688.66-18,852.53-11,799.51

Finding the Fourth Proportional to 13,688.66, 18,852.53 and 11,799.51

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Solution

The fourth proportional to 13,688.66, 18,852.53 and 11,799.51 is: 16,250.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.66 : 18,852.53 = 11,799.51 : x
  2. Step 2: Convert to fraction form
    13,688.66/18,852.53 = 11,799.51/x
  3. Step 3: Cross multiply
    13,688.66x = 18,852.53 × 11,799.51
  4. Step 4: Simplify right side
    13,688.66x = 222,450,557.26
  5. Step 5: Solve for x
    x = 222,450,557.26/13,688.66
  6. Step 6: Final answer
    x = 16,250.72

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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.