Home / 7,780.14-11,666.16-4,073.40

Finding the Fourth Proportional to 7,780.14, 11,666.16 and 4,073.40

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Solution

The fourth proportional to 7,780.14, 11,666.16 and 4,073.40 is: 6,107.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.14 : 11,666.16 = 4,073.40 : x
  2. Step 2: Convert to fraction form
    7,780.14/11,666.16 = 4,073.40/x
  3. Step 3: Cross multiply
    7,780.14x = 11,666.16 × 4,073.40
  4. Step 4: Simplify right side
    7,780.14x = 47,520,936.14
  5. Step 5: Solve for x
    x = 47,520,936.14/7,780.14
  6. Step 6: Final answer
    x = 6,107.98

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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.