Home / 11,465.28-17,188.32-10,920.96

Finding the Fourth Proportional to 11,465.28, 17,188.32 and 10,920.96

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Solution

The fourth proportional to 11,465.28, 17,188.32 and 10,920.96 is: 16,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.28 : 17,188.32 = 10,920.96 : x
  2. Step 2: Convert to fraction form
    11,465.28/17,188.32 = 10,920.96/x
  3. Step 3: Cross multiply
    11,465.28x = 17,188.32 × 10,920.96
  4. Step 4: Simplify right side
    11,465.28x = 187,712,955.19
  5. Step 5: Solve for x
    x = 187,712,955.19/11,465.28
  6. Step 6: Final answer
    x = 16,372.30

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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.