Home / 13,353.30-18,421.74-8,045.06

Finding the Fourth Proportional to 13,353.30, 18,421.74 and 8,045.06

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Solution

The fourth proportional to 13,353.30, 18,421.74 and 8,045.06 is: 11,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.30 : 18,421.74 = 8,045.06 : x
  2. Step 2: Convert to fraction form
    13,353.30/18,421.74 = 8,045.06/x
  3. Step 3: Cross multiply
    13,353.30x = 18,421.74 × 8,045.06
  4. Step 4: Simplify right side
    13,353.30x = 148,203,911.50
  5. Step 5: Solve for x
    x = 148,203,911.50/13,353.30
  6. Step 6: Final answer
    x = 11,098.67

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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.