Home / 13,656.15-20,469.66-9,748.71

Finding the Fourth Proportional to 13,656.15, 20,469.66 and 9,748.71

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Solution

The fourth proportional to 13,656.15, 20,469.66 and 9,748.71 is: 14,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.15 : 20,469.66 = 9,748.71 : x
  2. Step 2: Convert to fraction form
    13,656.15/20,469.66 = 9,748.71/x
  3. Step 3: Cross multiply
    13,656.15x = 20,469.66 × 9,748.71
  4. Step 4: Simplify right side
    13,656.15x = 199,552,779.14
  5. Step 5: Solve for x
    x = 199,552,779.14/13,656.15
  6. Step 6: Final answer
    x = 14,612.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.