Home / 13,525.88-18,664.04-7,557.36

Finding the Fourth Proportional to 13,525.88, 18,664.04 and 7,557.36

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Solution

The fourth proportional to 13,525.88, 18,664.04 and 7,557.36 is: 10,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.88 : 18,664.04 = 7,557.36 : x
  2. Step 2: Convert to fraction form
    13,525.88/18,664.04 = 7,557.36/x
  3. Step 3: Cross multiply
    13,525.88x = 18,664.04 × 7,557.36
  4. Step 4: Simplify right side
    13,525.88x = 141,050,869.33
  5. Step 5: Solve for x
    x = 141,050,869.33/13,525.88
  6. Step 6: Final answer
    x = 10,428.22

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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.