Home / 12,282.76-18,411.18-5,260.60

Finding the Fourth Proportional to 12,282.76, 18,411.18 and 5,260.60

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Solution

The fourth proportional to 12,282.76, 18,411.18 and 5,260.60 is: 7,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.76 : 18,411.18 = 5,260.60 : x
  2. Step 2: Convert to fraction form
    12,282.76/18,411.18 = 5,260.60/x
  3. Step 3: Cross multiply
    12,282.76x = 18,411.18 × 5,260.60
  4. Step 4: Simplify right side
    12,282.76x = 96,853,853.51
  5. Step 5: Solve for x
    x = 96,853,853.51/12,282.76
  6. Step 6: Final answer
    x = 7,885.35

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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.