Home / 13,975.20-19,289.84-8,313.93

Finding the Fourth Proportional to 13,975.20, 19,289.84 and 8,313.93

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Solution

The fourth proportional to 13,975.20, 19,289.84 and 8,313.93 is: 11,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.20 : 19,289.84 = 8,313.93 : x
  2. Step 2: Convert to fraction form
    13,975.20/19,289.84 = 8,313.93/x
  3. Step 3: Cross multiply
    13,975.20x = 19,289.84 × 8,313.93
  4. Step 4: Simplify right side
    13,975.20x = 160,374,337.90
  5. Step 5: Solve for x
    x = 160,374,337.90/13,975.20
  6. Step 6: Final answer
    x = 11,475.64

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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.