Home / 13,929.95-20,901.74-6,910.62

Finding the Fourth Proportional to 13,929.95, 20,901.74 and 6,910.62

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Solution

The fourth proportional to 13,929.95, 20,901.74 and 6,910.62 is: 10,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.95 : 20,901.74 = 6,910.62 : x
  2. Step 2: Convert to fraction form
    13,929.95/20,901.74 = 6,910.62/x
  3. Step 3: Cross multiply
    13,929.95x = 20,901.74 × 6,910.62
  4. Step 4: Simplify right side
    13,929.95x = 144,443,947.93
  5. Step 5: Solve for x
    x = 144,443,947.93/13,929.95
  6. Step 6: Final answer
    x = 10,369.31

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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.