Home / 12,429.72-18,645.95-4,534.65

Finding the Fourth Proportional to 12,429.72, 18,645.95 and 4,534.65

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Solution

The fourth proportional to 12,429.72, 18,645.95 and 4,534.65 is: 6,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.72 : 18,645.95 = 4,534.65 : x
  2. Step 2: Convert to fraction form
    12,429.72/18,645.95 = 4,534.65/x
  3. Step 3: Cross multiply
    12,429.72x = 18,645.95 × 4,534.65
  4. Step 4: Simplify right side
    12,429.72x = 84,552,834.49
  5. Step 5: Solve for x
    x = 84,552,834.49/12,429.72
  6. Step 6: Final answer
    x = 6,802.47

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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.