Home / 9,780.20-14,670.30-3,933.80

Finding the Fourth Proportional to 9,780.20, 14,670.30 and 3,933.80

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Solution

The fourth proportional to 9,780.20, 14,670.30 and 3,933.80 is: 5,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.20 : 14,670.30 = 3,933.80 : x
  2. Step 2: Convert to fraction form
    9,780.20/14,670.30 = 3,933.80/x
  3. Step 3: Cross multiply
    9,780.20x = 14,670.30 × 3,933.80
  4. Step 4: Simplify right side
    9,780.20x = 57,710,026.14
  5. Step 5: Solve for x
    x = 57,710,026.14/9,780.20
  6. Step 6: Final answer
    x = 5,900.70

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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.