Home / 14,642.24-20,215.60-9,615.38

Finding the Fourth Proportional to 14,642.24, 20,215.60 and 9,615.38

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Solution

The fourth proportional to 14,642.24, 20,215.60 and 9,615.38 is: 13,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.24 : 20,215.60 = 9,615.38 : x
  2. Step 2: Convert to fraction form
    14,642.24/20,215.60 = 9,615.38/x
  3. Step 3: Cross multiply
    14,642.24x = 20,215.60 × 9,615.38
  4. Step 4: Simplify right side
    14,642.24x = 194,380,675.93
  5. Step 5: Solve for x
    x = 194,380,675.93/14,642.24
  6. Step 6: Final answer
    x = 13,275.34

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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.