Home / 13,299.22-18,353.70-7,332.16

Finding the Fourth Proportional to 13,299.22, 18,353.70 and 7,332.16

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Solution

The fourth proportional to 13,299.22, 18,353.70 and 7,332.16 is: 10,118.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.22 : 18,353.70 = 7,332.16 : x
  2. Step 2: Convert to fraction form
    13,299.22/18,353.70 = 7,332.16/x
  3. Step 3: Cross multiply
    13,299.22x = 18,353.70 × 7,332.16
  4. Step 4: Simplify right side
    13,299.22x = 134,572,264.99
  5. Step 5: Solve for x
    x = 134,572,264.99/13,299.22
  6. Step 6: Final answer
    x = 10,118.81

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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.