Home / 12,530.85-18,795.61-4,210.93

Finding the Fourth Proportional to 12,530.85, 18,795.61 and 4,210.93

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Solution

The fourth proportional to 12,530.85, 18,795.61 and 4,210.93 is: 6,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.85 : 18,795.61 = 4,210.93 : x
  2. Step 2: Convert to fraction form
    12,530.85/18,795.61 = 4,210.93/x
  3. Step 3: Cross multiply
    12,530.85x = 18,795.61 × 4,210.93
  4. Step 4: Simplify right side
    12,530.85x = 79,146,998.02
  5. Step 5: Solve for x
    x = 79,146,998.02/12,530.85
  6. Step 6: Final answer
    x = 6,316.17

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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.