Home / 13,298.33-18,363.56-12,668.15

Finding the Fourth Proportional to 13,298.33, 18,363.56 and 12,668.15

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Solution

The fourth proportional to 13,298.33, 18,363.56 and 12,668.15 is: 17,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.33 : 18,363.56 = 12,668.15 : x
  2. Step 2: Convert to fraction form
    13,298.33/18,363.56 = 12,668.15/x
  3. Step 3: Cross multiply
    13,298.33x = 18,363.56 × 12,668.15
  4. Step 4: Simplify right side
    13,298.33x = 232,632,177.46
  5. Step 5: Solve for x
    x = 232,632,177.46/13,298.33
  6. Step 6: Final answer
    x = 17,493.34

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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.