Home / 12,217.58-18,328.17-4,424.57

Finding the Fourth Proportional to 12,217.58, 18,328.17 and 4,424.57

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Solution

The fourth proportional to 12,217.58, 18,328.17 and 4,424.57 is: 6,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.58 : 18,328.17 = 4,424.57 : x
  2. Step 2: Convert to fraction form
    12,217.58/18,328.17 = 4,424.57/x
  3. Step 3: Cross multiply
    12,217.58x = 18,328.17 × 4,424.57
  4. Step 4: Simplify right side
    12,217.58x = 81,094,271.14
  5. Step 5: Solve for x
    x = 81,094,271.14/12,217.58
  6. Step 6: Final answer
    x = 6,637.51

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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.