Home / 14,955.31-20,639.24-8,240.93

Finding the Fourth Proportional to 14,955.31, 20,639.24 and 8,240.93

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Solution

The fourth proportional to 14,955.31, 20,639.24 and 8,240.93 is: 11,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.31 : 20,639.24 = 8,240.93 : x
  2. Step 2: Convert to fraction form
    14,955.31/20,639.24 = 8,240.93/x
  3. Step 3: Cross multiply
    14,955.31x = 20,639.24 × 8,240.93
  4. Step 4: Simplify right side
    14,955.31x = 170,086,465.09
  5. Step 5: Solve for x
    x = 170,086,465.09/14,955.31
  6. Step 6: Final answer
    x = 11,372.98

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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.