Home / 10,977.12-15,148.52-6,261.64

Finding the Fourth Proportional to 10,977.12, 15,148.52 and 6,261.64

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Solution

The fourth proportional to 10,977.12, 15,148.52 and 6,261.64 is: 8,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.12 : 15,148.52 = 6,261.64 : x
  2. Step 2: Convert to fraction form
    10,977.12/15,148.52 = 6,261.64/x
  3. Step 3: Cross multiply
    10,977.12x = 15,148.52 × 6,261.64
  4. Step 4: Simplify right side
    10,977.12x = 94,854,578.77
  5. Step 5: Solve for x
    x = 94,854,578.77/10,977.12
  6. Step 6: Final answer
    x = 8,641.12

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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.