Home / 13,117.79-18,101.67-7,453.73

Finding the Fourth Proportional to 13,117.79, 18,101.67 and 7,453.73

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Solution

The fourth proportional to 13,117.79, 18,101.67 and 7,453.73 is: 10,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.79 : 18,101.67 = 7,453.73 : x
  2. Step 2: Convert to fraction form
    13,117.79/18,101.67 = 7,453.73/x
  3. Step 3: Cross multiply
    13,117.79x = 18,101.67 × 7,453.73
  4. Step 4: Simplify right side
    13,117.79x = 134,924,960.73
  5. Step 5: Solve for x
    x = 134,924,960.73/13,117.79
  6. Step 6: Final answer
    x = 10,285.65

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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.