Home / 9,678.14-14,517.17-6,390.45

Finding the Fourth Proportional to 9,678.14, 14,517.17 and 6,390.45

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Solution

The fourth proportional to 9,678.14, 14,517.17 and 6,390.45 is: 9,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.14 : 14,517.17 = 6,390.45 : x
  2. Step 2: Convert to fraction form
    9,678.14/14,517.17 = 6,390.45/x
  3. Step 3: Cross multiply
    9,678.14x = 14,517.17 × 6,390.45
  4. Step 4: Simplify right side
    9,678.14x = 92,771,276.98
  5. Step 5: Solve for x
    x = 92,771,276.98/9,678.14
  6. Step 6: Final answer
    x = 9,585.65

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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.