Home / 13,985.71-20,974.10-4,623.98

Finding the Fourth Proportional to 13,985.71, 20,974.10 and 4,623.98

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Solution

The fourth proportional to 13,985.71, 20,974.10 and 4,623.98 is: 6,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.71 : 20,974.10 = 4,623.98 : x
  2. Step 2: Convert to fraction form
    13,985.71/20,974.10 = 4,623.98/x
  3. Step 3: Cross multiply
    13,985.71x = 20,974.10 × 4,623.98
  4. Step 4: Simplify right side
    13,985.71x = 96,983,690.93
  5. Step 5: Solve for x
    x = 96,983,690.93/13,985.71
  6. Step 6: Final answer
    x = 6,934.49

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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.