Home / 12,530.39-18,795.92-4,210.70

Finding the Fourth Proportional to 12,530.39, 18,795.92 and 4,210.70

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Solution

The fourth proportional to 12,530.39, 18,795.92 and 4,210.70 is: 6,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.39 : 18,795.92 = 4,210.70 : x
  2. Step 2: Convert to fraction form
    12,530.39/18,795.92 = 4,210.70/x
  3. Step 3: Cross multiply
    12,530.39x = 18,795.92 × 4,210.70
  4. Step 4: Simplify right side
    12,530.39x = 79,143,959.29
  5. Step 5: Solve for x
    x = 79,143,959.29/12,530.39
  6. Step 6: Final answer
    x = 6,316.16

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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.