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Finding the Fourth Proportional to 12,302.66, 18,443.02 and 4,509.65

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Solution

The fourth proportional to 12,302.66, 18,443.02 and 4,509.65 is: 6,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.66 : 18,443.02 = 4,509.65 : x
  2. Step 2: Convert to fraction form
    12,302.66/18,443.02 = 4,509.65/x
  3. Step 3: Cross multiply
    12,302.66x = 18,443.02 × 4,509.65
  4. Step 4: Simplify right side
    12,302.66x = 83,171,565.14
  5. Step 5: Solve for x
    x = 83,171,565.14/12,302.66
  6. Step 6: Final answer
    x = 6,760.45

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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.