Home / 11,810.63-17,718.38-4,885.13

Finding the Fourth Proportional to 11,810.63, 17,718.38 and 4,885.13

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Solution

The fourth proportional to 11,810.63, 17,718.38 and 4,885.13 is: 7,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.63 : 17,718.38 = 4,885.13 : x
  2. Step 2: Convert to fraction form
    11,810.63/17,718.38 = 4,885.13/x
  3. Step 3: Cross multiply
    11,810.63x = 17,718.38 × 4,885.13
  4. Step 4: Simplify right side
    11,810.63x = 86,556,476.67
  5. Step 5: Solve for x
    x = 86,556,476.67/11,810.63
  6. Step 6: Final answer
    x = 7,328.70

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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.