Home / 13,927.95-20,910.47-8,088.75

Finding the Fourth Proportional to 13,927.95, 20,910.47 and 8,088.75

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Solution

The fourth proportional to 13,927.95, 20,910.47 and 8,088.75 is: 12,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.95 : 20,910.47 = 8,088.75 : x
  2. Step 2: Convert to fraction form
    13,927.95/20,910.47 = 8,088.75/x
  3. Step 3: Cross multiply
    13,927.95x = 20,910.47 × 8,088.75
  4. Step 4: Simplify right side
    13,927.95x = 169,139,523.77
  5. Step 5: Solve for x
    x = 169,139,523.77/13,927.95
  6. Step 6: Final answer
    x = 12,143.89

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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.