Home / 11,313.20-16,937.40-10,672.40

Finding the Fourth Proportional to 11,313.20, 16,937.40 and 10,672.40

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Solution

The fourth proportional to 11,313.20, 16,937.40 and 10,672.40 is: 15,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.20 : 16,937.40 = 10,672.40 : x
  2. Step 2: Convert to fraction form
    11,313.20/16,937.40 = 10,672.40/x
  3. Step 3: Cross multiply
    11,313.20x = 16,937.40 × 10,672.40
  4. Step 4: Simplify right side
    11,313.20x = 180,762,707.76
  5. Step 5: Solve for x
    x = 180,762,707.76/11,313.20
  6. Step 6: Final answer
    x = 15,978.04

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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.