Home / 13,336.25-18,398.21-7,669.76

Finding the Fourth Proportional to 13,336.25, 18,398.21 and 7,669.76

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Solution

The fourth proportional to 13,336.25, 18,398.21 and 7,669.76 is: 10,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.25 : 18,398.21 = 7,669.76 : x
  2. Step 2: Convert to fraction form
    13,336.25/18,398.21 = 7,669.76/x
  3. Step 3: Cross multiply
    13,336.25x = 18,398.21 × 7,669.76
  4. Step 4: Simplify right side
    13,336.25x = 141,109,724.79
  5. Step 5: Solve for x
    x = 141,109,724.79/13,336.25
  6. Step 6: Final answer
    x = 10,580.92

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1.5x scale

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.