Home / 10,977.28-16,461.80-3,955.40

Finding the Fourth Proportional to 10,977.28, 16,461.80 and 3,955.40

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Solution

The fourth proportional to 10,977.28, 16,461.80 and 3,955.40 is: 5,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.28 : 16,461.80 = 3,955.40 : x
  2. Step 2: Convert to fraction form
    10,977.28/16,461.80 = 3,955.40/x
  3. Step 3: Cross multiply
    10,977.28x = 16,461.80 × 3,955.40
  4. Step 4: Simplify right side
    10,977.28x = 65,113,003.72
  5. Step 5: Solve for x
    x = 65,113,003.72/10,977.28
  6. Step 6: Final answer
    x = 5,931.62

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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.