Home / 11,688.10-17,539.18-4,191.08

Finding the Fourth Proportional to 11,688.10, 17,539.18 and 4,191.08

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Solution

The fourth proportional to 11,688.10, 17,539.18 and 4,191.08 is: 6,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.10 : 17,539.18 = 4,191.08 : x
  2. Step 2: Convert to fraction form
    11,688.10/17,539.18 = 4,191.08/x
  3. Step 3: Cross multiply
    11,688.10x = 17,539.18 × 4,191.08
  4. Step 4: Simplify right side
    11,688.10x = 73,507,997.86
  5. Step 5: Solve for x
    x = 73,507,997.86/11,688.10
  6. Step 6: Final answer
    x = 6,289.13

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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.