Home / 13,928.90-20,897.01-6,908.63

Finding the Fourth Proportional to 13,928.90, 20,897.01 and 6,908.63

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Solution

The fourth proportional to 13,928.90, 20,897.01 and 6,908.63 is: 10,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.90 : 20,897.01 = 6,908.63 : x
  2. Step 2: Convert to fraction form
    13,928.90/20,897.01 = 6,908.63/x
  3. Step 3: Cross multiply
    13,928.90x = 20,897.01 × 6,908.63
  4. Step 4: Simplify right side
    13,928.90x = 144,369,605.71
  5. Step 5: Solve for x
    x = 144,369,605.71/13,928.90
  6. Step 6: Final answer
    x = 10,364.76

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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.