Home / 8,487.72-12,725.40-5,707.48

Finding the Fourth Proportional to 8,487.72, 12,725.40 and 5,707.48

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Solution

The fourth proportional to 8,487.72, 12,725.40 and 5,707.48 is: 8,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.72 : 12,725.40 = 5,707.48 : x
  2. Step 2: Convert to fraction form
    8,487.72/12,725.40 = 5,707.48/x
  3. Step 3: Cross multiply
    8,487.72x = 12,725.40 × 5,707.48
  4. Step 4: Simplify right side
    8,487.72x = 72,629,965.99
  5. Step 5: Solve for x
    x = 72,629,965.99/8,487.72
  6. Step 6: Final answer
    x = 8,557.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.