Home / 7,886.16-11,813.40-3,925.47

Finding the Fourth Proportional to 7,886.16, 11,813.40 and 3,925.47

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Solution

The fourth proportional to 7,886.16, 11,813.40 and 3,925.47 is: 5,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.16 : 11,813.40 = 3,925.47 : x
  2. Step 2: Convert to fraction form
    7,886.16/11,813.40 = 3,925.47/x
  3. Step 3: Cross multiply
    7,886.16x = 11,813.40 × 3,925.47
  4. Step 4: Simplify right side
    7,886.16x = 46,373,147.30
  5. Step 5: Solve for x
    x = 46,373,147.30/7,886.16
  6. Step 6: Final answer
    x = 5,880.32

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1.5x scale

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.