Home / 11,809.16-17,715.65-3,490.01

Finding the Fourth Proportional to 11,809.16, 17,715.65 and 3,490.01

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Solution

The fourth proportional to 11,809.16, 17,715.65 and 3,490.01 is: 5,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.16 : 17,715.65 = 3,490.01 : x
  2. Step 2: Convert to fraction form
    11,809.16/17,715.65 = 3,490.01/x
  3. Step 3: Cross multiply
    11,809.16x = 17,715.65 × 3,490.01
  4. Step 4: Simplify right side
    11,809.16x = 61,827,795.66
  5. Step 5: Solve for x
    x = 61,827,795.66/11,809.16
  6. Step 6: Final answer
    x = 5,235.58

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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.