Home / 12,285.81-18,414.14-7,080.93

Finding the Fourth Proportional to 12,285.81, 18,414.14 and 7,080.93

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Solution

The fourth proportional to 12,285.81, 18,414.14 and 7,080.93 is: 10,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.81 : 18,414.14 = 7,080.93 : x
  2. Step 2: Convert to fraction form
    12,285.81/18,414.14 = 7,080.93/x
  3. Step 3: Cross multiply
    12,285.81x = 18,414.14 × 7,080.93
  4. Step 4: Simplify right side
    12,285.81x = 130,389,200.95
  5. Step 5: Solve for x
    x = 130,389,200.95/12,285.81
  6. Step 6: Final answer
    x = 10,612.99

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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.