Home / 14,980.45-20,679.65-9,677.85

Finding the Fourth Proportional to 14,980.45, 20,679.65 and 9,677.85

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Solution

The fourth proportional to 14,980.45, 20,679.65 and 9,677.85 is: 13,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.45 : 20,679.65 = 9,677.85 : x
  2. Step 2: Convert to fraction form
    14,980.45/20,679.65 = 9,677.85/x
  3. Step 3: Cross multiply
    14,980.45x = 20,679.65 × 9,677.85
  4. Step 4: Simplify right side
    14,980.45x = 200,134,550.75
  5. Step 5: Solve for x
    x = 200,134,550.75/14,980.45
  6. Step 6: Final answer
    x = 13,359.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.