Home / 17,163.79-23,669.38-13,385.58

Finding the Fourth Proportional to 17,163.79, 23,669.38 and 13,385.58

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Solution

The fourth proportional to 17,163.79, 23,669.38 and 13,385.58 is: 18,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.79 : 23,669.38 = 13,385.58 : x
  2. Step 2: Convert to fraction form
    17,163.79/23,669.38 = 13,385.58/x
  3. Step 3: Cross multiply
    17,163.79x = 23,669.38 × 13,385.58
  4. Step 4: Simplify right side
    17,163.79x = 316,828,307.51
  5. Step 5: Solve for x
    x = 316,828,307.51/17,163.79
  6. Step 6: Final answer
    x = 18,459.11

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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.