Home / 13,077.08-18,044.32-7,487

Finding the Fourth Proportional to 13,077.08, 18,044.32 and 7,487

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Solution

The fourth proportional to 13,077.08, 18,044.32 and 7,487 is: 10,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.08 : 18,044.32 = 7,487 : x
  2. Step 2: Convert to fraction form
    13,077.08/18,044.32 = 7,487/x
  3. Step 3: Cross multiply
    13,077.08x = 18,044.32 × 7,487
  4. Step 4: Simplify right side
    13,077.08x = 135,097,823.84
  5. Step 5: Solve for x
    x = 135,097,823.84/13,077.08
  6. Step 6: Final answer
    x = 10,330.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.