Home / 10,523.18-15,782.07-3,125.63

Finding the Fourth Proportional to 10,523.18, 15,782.07 and 3,125.63

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Solution

The fourth proportional to 10,523.18, 15,782.07 and 3,125.63 is: 4,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,523.18 : 15,782.07 = 3,125.63 : x
  2. Step 2: Convert to fraction form
    10,523.18/15,782.07 = 3,125.63/x
  3. Step 3: Cross multiply
    10,523.18x = 15,782.07 × 3,125.63
  4. Step 4: Simplify right side
    10,523.18x = 49,328,911.45
  5. Step 5: Solve for x
    x = 49,328,911.45/10,523.18
  6. Step 6: Final answer
    x = 4,687.64

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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.