Home / 12,674.40-19,011.60-5,280.18

Finding the Fourth Proportional to 12,674.40, 19,011.60 and 5,280.18

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Solution

The fourth proportional to 12,674.40, 19,011.60 and 5,280.18 is: 7,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.40 : 19,011.60 = 5,280.18 : x
  2. Step 2: Convert to fraction form
    12,674.40/19,011.60 = 5,280.18/x
  3. Step 3: Cross multiply
    12,674.40x = 19,011.60 × 5,280.18
  4. Step 4: Simplify right side
    12,674.40x = 100,384,670.09
  5. Step 5: Solve for x
    x = 100,384,670.09/12,674.40
  6. Step 6: Final answer
    x = 7,920.27

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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.