Home / 12,582.84-18,867.24-8,638.68

Finding the Fourth Proportional to 12,582.84, 18,867.24 and 8,638.68

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Solution

The fourth proportional to 12,582.84, 18,867.24 and 8,638.68 is: 12,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.84 : 18,867.24 = 8,638.68 : x
  2. Step 2: Convert to fraction form
    12,582.84/18,867.24 = 8,638.68/x
  3. Step 3: Cross multiply
    12,582.84x = 18,867.24 × 8,638.68
  4. Step 4: Simplify right side
    12,582.84x = 162,988,048.84
  5. Step 5: Solve for x
    x = 162,988,048.84/12,582.84
  6. Step 6: Final answer
    x = 12,953.20

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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.