Home / 13,983.78-20,973.06-4,623.90

Finding the Fourth Proportional to 13,983.78, 20,973.06 and 4,623.90

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Solution

The fourth proportional to 13,983.78, 20,973.06 and 4,623.90 is: 6,934.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.78 : 20,973.06 = 4,623.90 : x
  2. Step 2: Convert to fraction form
    13,983.78/20,973.06 = 4,623.90/x
  3. Step 3: Cross multiply
    13,983.78x = 20,973.06 × 4,623.90
  4. Step 4: Simplify right side
    13,983.78x = 96,977,332.13
  5. Step 5: Solve for x
    x = 96,977,332.13/13,983.78
  6. Step 6: Final answer
    x = 6,934.99

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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.