Home / 10,530.64-15,795.66-3,135.16

Finding the Fourth Proportional to 10,530.64, 15,795.66 and 3,135.16

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Solution

The fourth proportional to 10,530.64, 15,795.66 and 3,135.16 is: 4,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.64 : 15,795.66 = 3,135.16 : x
  2. Step 2: Convert to fraction form
    10,530.64/15,795.66 = 3,135.16/x
  3. Step 3: Cross multiply
    10,530.64x = 15,795.66 × 3,135.16
  4. Step 4: Simplify right side
    10,530.64x = 49,521,921.41
  5. Step 5: Solve for x
    x = 49,521,921.41/10,530.64
  6. Step 6: Final answer
    x = 4,702.65

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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.