Home / 14,513.96-20,038.86-12,939.32

Finding the Fourth Proportional to 14,513.96, 20,038.86 and 12,939.32

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Solution

The fourth proportional to 14,513.96, 20,038.86 and 12,939.32 is: 17,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.96 : 20,038.86 = 12,939.32 : x
  2. Step 2: Convert to fraction form
    14,513.96/20,038.86 = 12,939.32/x
  3. Step 3: Cross multiply
    14,513.96x = 20,038.86 × 12,939.32
  4. Step 4: Simplify right side
    14,513.96x = 259,289,221.98
  5. Step 5: Solve for x
    x = 259,289,221.98/14,513.96
  6. Step 6: Final answer
    x = 17,864.82

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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.