Home / 6,460.14-9,678.52-5,426.78

Finding the Fourth Proportional to 6,460.14, 9,678.52 and 5,426.78

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Solution

The fourth proportional to 6,460.14, 9,678.52 and 5,426.78 is: 8,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,460.14 : 9,678.52 = 5,426.78 : x
  2. Step 2: Convert to fraction form
    6,460.14/9,678.52 = 5,426.78/x
  3. Step 3: Cross multiply
    6,460.14x = 9,678.52 × 5,426.78
  4. Step 4: Simplify right side
    6,460.14x = 52,523,198.77
  5. Step 5: Solve for x
    x = 52,523,198.77/6,460.14
  6. Step 6: Final answer
    x = 8,130.35

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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.