Home / 12,182.24-18,271.28-4,389.92

Finding the Fourth Proportional to 12,182.24, 18,271.28 and 4,389.92

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Solution

The fourth proportional to 12,182.24, 18,271.28 and 4,389.92 is: 6,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.24 : 18,271.28 = 4,389.92 : x
  2. Step 2: Convert to fraction form
    12,182.24/18,271.28 = 4,389.92/x
  3. Step 3: Cross multiply
    12,182.24x = 18,271.28 × 4,389.92
  4. Step 4: Simplify right side
    12,182.24x = 80,209,457.50
  5. Step 5: Solve for x
    x = 80,209,457.50/12,182.24
  6. Step 6: Final answer
    x = 6,584.13

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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.