Home / 13,148.74-18,145.22-8,433

Finding the Fourth Proportional to 13,148.74, 18,145.22 and 8,433

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Solution

The fourth proportional to 13,148.74, 18,145.22 and 8,433 is: 11,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.74 : 18,145.22 = 8,433 : x
  2. Step 2: Convert to fraction form
    13,148.74/18,145.22 = 8,433/x
  3. Step 3: Cross multiply
    13,148.74x = 18,145.22 × 8,433
  4. Step 4: Simplify right side
    13,148.74x = 153,018,640.26
  5. Step 5: Solve for x
    x = 153,018,640.26/13,148.74
  6. Step 6: Final answer
    x = 11,637.51

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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.