Home / 12,352.72-17,049.40-7,875.44

Finding the Fourth Proportional to 12,352.72, 17,049.40 and 7,875.44

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Solution

The fourth proportional to 12,352.72, 17,049.40 and 7,875.44 is: 10,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.72 : 17,049.40 = 7,875.44 : x
  2. Step 2: Convert to fraction form
    12,352.72/17,049.40 = 7,875.44/x
  3. Step 3: Cross multiply
    12,352.72x = 17,049.40 × 7,875.44
  4. Step 4: Simplify right side
    12,352.72x = 134,271,526.74
  5. Step 5: Solve for x
    x = 134,271,526.74/12,352.72
  6. Step 6: Final answer
    x = 10,869.79

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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.