Home / 10,913.40-16,364.28-3,892.32

Finding the Fourth Proportional to 10,913.40, 16,364.28 and 3,892.32

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Solution

The fourth proportional to 10,913.40, 16,364.28 and 3,892.32 is: 5,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 16,364.28 = 3,892.32 : x
  2. Step 2: Convert to fraction form
    10,913.40/16,364.28 = 3,892.32/x
  3. Step 3: Cross multiply
    10,913.40x = 16,364.28 × 3,892.32
  4. Step 4: Simplify right side
    10,913.40x = 63,695,014.33
  5. Step 5: Solve for x
    x = 63,695,014.33/10,913.40
  6. Step 6: Final answer
    x = 5,836.40

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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.