Home / 13,623.55-18,801.33-7,655.21

Finding the Fourth Proportional to 13,623.55, 18,801.33 and 7,655.21

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Solution

The fourth proportional to 13,623.55, 18,801.33 and 7,655.21 is: 10,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.55 : 18,801.33 = 7,655.21 : x
  2. Step 2: Convert to fraction form
    13,623.55/18,801.33 = 7,655.21/x
  3. Step 3: Cross multiply
    13,623.55x = 18,801.33 × 7,655.21
  4. Step 4: Simplify right side
    13,623.55x = 143,928,226.04
  5. Step 5: Solve for x
    x = 143,928,226.04/13,623.55
  6. Step 6: Final answer
    x = 10,564.67

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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.