Home / 10,523.18-15,782.06-3,125.64

Finding the Fourth Proportional to 10,523.18, 15,782.06 and 3,125.64

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Solution

The fourth proportional to 10,523.18, 15,782.06 and 3,125.64 is: 4,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,523.18 : 15,782.06 = 3,125.64 : x
  2. Step 2: Convert to fraction form
    10,523.18/15,782.06 = 3,125.64/x
  3. Step 3: Cross multiply
    10,523.18x = 15,782.06 × 3,125.64
  4. Step 4: Simplify right side
    10,523.18x = 49,329,038.02
  5. Step 5: Solve for x
    x = 49,329,038.02/10,523.18
  6. Step 6: Final answer
    x = 4,687.66

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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.