Home / 10,851.20-16,276.80-3,924.08

Finding the Fourth Proportional to 10,851.20, 16,276.80 and 3,924.08

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Solution

The fourth proportional to 10,851.20, 16,276.80 and 3,924.08 is: 5,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.20 : 16,276.80 = 3,924.08 : x
  2. Step 2: Convert to fraction form
    10,851.20/16,276.80 = 3,924.08/x
  3. Step 3: Cross multiply
    10,851.20x = 16,276.80 × 3,924.08
  4. Step 4: Simplify right side
    10,851.20x = 63,871,465.34
  5. Step 5: Solve for x
    x = 63,871,465.34/10,851.20
  6. Step 6: Final answer
    x = 5,886.12

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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.