Home / 13,575.28-18,732.93-7,525.09

Finding the Fourth Proportional to 13,575.28, 18,732.93 and 7,525.09

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Solution

The fourth proportional to 13,575.28, 18,732.93 and 7,525.09 is: 10,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.28 : 18,732.93 = 7,525.09 : x
  2. Step 2: Convert to fraction form
    13,575.28/18,732.93 = 7,525.09/x
  3. Step 3: Cross multiply
    13,575.28x = 18,732.93 × 7,525.09
  4. Step 4: Simplify right side
    13,575.28x = 140,966,895.20
  5. Step 5: Solve for x
    x = 140,966,895.20/13,575.28
  6. Step 6: Final answer
    x = 10,384.09

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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.