Home / 10,977.36-15,146.64-6,261.52

Finding the Fourth Proportional to 10,977.36, 15,146.64 and 6,261.52

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Solution

The fourth proportional to 10,977.36, 15,146.64 and 6,261.52 is: 8,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.36 : 15,146.64 = 6,261.52 : x
  2. Step 2: Convert to fraction form
    10,977.36/15,146.64 = 6,261.52/x
  3. Step 3: Cross multiply
    10,977.36x = 15,146.64 × 6,261.52
  4. Step 4: Simplify right side
    10,977.36x = 94,840,989.29
  5. Step 5: Solve for x
    x = 94,840,989.29/10,977.36
  6. Step 6: Final answer
    x = 8,639.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.