Home / 13,300.11-18,353.91-7,331.80

Finding the Fourth Proportional to 13,300.11, 18,353.91 and 7,331.80

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Solution

The fourth proportional to 13,300.11, 18,353.91 and 7,331.80 is: 10,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.11 : 18,353.91 = 7,331.80 : x
  2. Step 2: Convert to fraction form
    13,300.11/18,353.91 = 7,331.80/x
  3. Step 3: Cross multiply
    13,300.11x = 18,353.91 × 7,331.80
  4. Step 4: Simplify right side
    13,300.11x = 134,567,197.34
  5. Step 5: Solve for x
    x = 134,567,197.34/13,300.11
  6. Step 6: Final answer
    x = 10,117.75

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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.