Home / 12,328.59-18,491.13-4,008.72

Finding the Fourth Proportional to 12,328.59, 18,491.13 and 4,008.72

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Solution

The fourth proportional to 12,328.59, 18,491.13 and 4,008.72 is: 6,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.59 : 18,491.13 = 4,008.72 : x
  2. Step 2: Convert to fraction form
    12,328.59/18,491.13 = 4,008.72/x
  3. Step 3: Cross multiply
    12,328.59x = 18,491.13 × 4,008.72
  4. Step 4: Simplify right side
    12,328.59x = 74,125,762.65
  5. Step 5: Solve for x
    x = 74,125,762.65/12,328.59
  6. Step 6: Final answer
    x = 6,012.51

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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.