Home / 8,460.14-12,686.58-4,240.58

Finding the Fourth Proportional to 8,460.14, 12,686.58 and 4,240.58

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Solution

The fourth proportional to 8,460.14, 12,686.58 and 4,240.58 is: 6,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.14 : 12,686.58 = 4,240.58 : x
  2. Step 2: Convert to fraction form
    8,460.14/12,686.58 = 4,240.58/x
  3. Step 3: Cross multiply
    8,460.14x = 12,686.58 × 4,240.58
  4. Step 4: Simplify right side
    8,460.14x = 53,798,393.98
  5. Step 5: Solve for x
    x = 53,798,393.98/8,460.14
  6. Step 6: Final answer
    x = 6,359.05

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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.